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List of results

islands of Aegean Sea). +
juniper-sagebrush scrub +
largely in temperate and subarctic areas. +
largely temperate Northern Hemisphere. +
less common in temperate areas. +
less diverse in temperate areas. +
likely introduced also in Mexico +
locally introduced in Australia. +
low arctic +
mainland se Asia). +
mainly (80%) in American tropics +
mainly Calif. +
mainly Northern Hemisphere. +
mainly acidic substrates. +
mainly arid regions. +
mainly e Asia. +
mainly in arid and semiarid areas. +
mainly in arid regions. +
mainly in subarctic +
mainly in temperate regions. +
mainly in the temperate zones. +
mainly in tropical areas. +
mainly montane where native in tropical regions. +
mainly n temperate to arctic. +
mainly neotropical with Samolus cosmopolitan. +
mainly north-temperate regions. +
mainly subtropical to tropical areas. +
mainly temperate and arctic areas. +
mainly temperate and upland tropics. +
mainly temperate areas. +
mainly tropical and hyperoceanic south temperate regions. +
mainly tropical and subtropical regions. +
mainly tropical and subtropical. +
mainly tropical areas. +
mainly tropical to subtropical +
mainly tropical. +
major center of distribution in Mexico. +
margins of moist woods +
marshes +
mid Europe to s Russia and n Africa. +
moderate to high elevations. +
moist open +
moist to wet places. +
montane +
montane and alpine +
montane c Asia +
montane c Asia (Japan +
montane e Africa +
montane in warm temperate to tropical regions. +
montane to alpine and boreal to arctic areas. +
montane to arctic areas. +
montane tropical regions. +
more common in temperate areas. +
most abundant in north-temperate regions. +
most abundant in tropics +
most diverse in austral temperate areas. +
most diverse in dry tropical and warm-temperate regions. +
most diverse in subtropics and tropics. +
most diverse in the Western Hemisphere +
most diverse in tropical forests. +
most in Africa +
most in Eurasia. +
most in Old World. +
most species endemic to western North America. +
mostly Asia and Africa. +
mostly Australia +
mostly Eurasian. +
mostly Mexican. +
mostly Mexico and Central America. +
mostly New World +
mostly New World. +
mostly North America +
mostly Northern Hemisphere. +
mostly Old World +
mostly Old World (especially s Africa) +
mostly Old World. +
mostly South America +
mostly South America to North America +
mostly South America. +
mostly aquatic or on wet +
mostly at temperate latitudes +
mostly central Asia and India. +
mostly e Asia +
mostly in Africa. +
mostly in Asia and East Indies. +
mostly in Asia. +
mostly in Northern Hemisphere in arctic +
mostly in Old World +
mostly in arctic +
mostly in e Asia and Pacific Islands +
mostly in eastern Asia +
mostly in ne Asia +
mostly in northern hemisphere in moist to wet habitats +
mostly in subtropical and warm-temperate zones. +
mostly in subtropics and tropics. +
mostly in subtropics and warm-temperate regions. +
mostly in sunny +
mostly in sunny places with wet +
mostly in temperate regions. +
mostly in tropical and subtropical areas. +
mostly in tropical areas. +
mostly in warm-temperate +
mostly montane in Southern Hemisphere and equatorial regions. +
mostly north-temperate +
mostly north-temperate areas. +
mostly north-temperate regions and southern Africa. +
mostly north-temperate. +
mostly of temperate areas. +
mostly subtropical +
mostly subtropical and tropical +
mostly subtropical to tropical environments. +
mostly temperate +
mostly temperate areas. +
mostly temperate or montane in tropical latitudes. +
mostly temperate or montane regions. +
mostly temperate to subtropical. +
mostly temperate zone. +
mostly temperate. +
mostly tropical +
mostly tropical and subtropical regions. +
mostly tropical and subtropical. +
mostly tropical in distribution. +
mostly tropical or subtropical regions +
mostly tropical regions +
mostly tropical regions. +
mostly tropical to warm temperate regions. +
mostly tropical to warm-temperate New World +
mostly tropical. +
mostly tropics +
mostly tropics. +
mostly warm-temperate and tropical +
mountainous regions of sw United States and Mexico. +
mountains of Central America and South America. +
mountains of subtropical or tropical regions. +
mountains). +
n +
n Africa +
n Africa (Algeria) +
n Africa (Mediterranean coast). +
n Africa (Mediterranean region) +
n Africa (Mediterranean region). +
n Africa (Morocco +
n Africa (Morocco) +
n Africa (Morocco). +
n Africa (Tunisia) +
n Africa (cultivated +
n Africa (especially Mediterranean region) +
n Africa (including Canary Islands). +
n Africa. +
n Andes +
n Asia +
n Asia (Chukotka). +
n Asia (Japan +
n Asia (Russia) +
n Asia (Russia). +
n Asia (Russian Arctic). +
n Asia (arctic and subarctic zones). +
n Asia to China +
n Asia to Kamchatka. +
n Asia to ne China +
n Asia. +
n Atlantic Islands +
n Atlantic Islands (Canary Islands) +
n Atlantic Islands (Canary Islands). +
n Atlantic Islands (Macaronesia) +
n Atlantic Islands. +
n Australia +
n Australia. +
n Brazil). +
n Canada +
n Central America +
n Central America. +
n China +
n Ecuador and Peru +
n Eurasia +
n Eurasia (Himalayan Nepal). +
n Eurasia (Russia) +
n Eurasia (w to Rumania). +
n Eurasia to ne China +
n Eurasia. +
n Europe +
n Europe (Arctic Russia). +
n Europe (Franz Joseph Land +
n Europe (Norway +
n Europe (Norway). +
n Europe (Scandinavia +
n Europe (Scandinavia) +
n Europe (Scandinavia). +
n Europe (n Russia) +
n Europe. +
n France +
n India +
n Iran +
n Ireland). +
n Italy +
n Japan (Hokkaido). +
n Mexico +
n Mexico (Baja California +
n Mexico (Baja California to Sonora). +
n Mexico (Baja California). +
n Mexico (Caribbean and Pacific coasts). +
n Mexico (Chihuahua +
n Mexico (Chihuahua) +
n Mexico (Chihuahua). +
n Mexico (Coahuila +
n Mexico (Coahuila). +
n Mexico (Sinaloa +
n Mexico (Sonora). +
n Mexico (Tamaulipas). +
n Mexico including Baja California. +
n Mexico. +
n Mongolia +
n North Africa +
n North America +
n North America. +
n Russia +
n Russia) +
n Russia). +
n Siberia) +
n Siberia). +
n South America +
n South America (Colombia +
n South America (Colombia) +
n South America (Colombia). +
n South America (Colombia-Isla de Providencia). +
n South America (French Guiana +
n South America (Venezuela). +
n South America (w Ecuador). +
n South America (w Venezuela). +
n South America. +
n Sweden) +
n Sweden). +
n Venezuela. +
n West Indies. +
n and Arctic Europe +
n and c South America. +
n and e South America. +
n and nc Mexico. +
n temperate Europe +
n temperate North America and Eurasia. +
n temperate and arctic subtropical and +
nAfrica. +
native +
native Eurasia. +
native e Asia. +
native from India to the Philippine Islands. +
native in tropical Asia. +
native of China. +
native of Eurasia. +
native of s Asia +
native s +
native s Europe +
native se Europe +
native to Africa. +
native to Asia +
native to Asia (China +
native to Asia (China and Japan). +
native to Asia (India). +
native to Asia (southern China +
native to Asia. +
native to Australia (Queensland). +
native to Australia. +
native to Burma +
native to Central America +
native to Eastern Hemisphere +
native to Eastern Hemisphere. +
native to Eurasia +
native to Eurasia (Mediterranean area +
native to Eurasia. +
native to Europe +
native to Europe (Greece). +
native to Europe and Africa +
native to Europe and Asia. +
native to Europe and w Asia. +
native to Europe. +
native to India. +
native to Malay Peninsula +
native to Mediterranean +
native to Mexico and Central America. +
native to North America and South America +
native to South America +
native to South America (Argentina) +
native to South America (s Brazil +
native to South America. +
native to West Indies +
native to arid steppe and desert regions of Eurasia. +
native to e Asia. +
native to mountains of Europe. +
native to ne +
native to s +
native to s Eurasia +
native to s North America +
native to s South America. +
native to subtropical and tropical America. +
native to sw Europe +
native to tropical Asia. +
native to tropical and subtropical Asia +
native tropical Asia. +
natural range uncertain (see discussion of species). +
naturalized +
naturalized Central America +
naturalized Eurasia +
naturalized Europe. +
naturalized South Africa. +
naturalized c +
naturalized elsewhere in s Europe. +
naturalized in Europe. +
naturalized in Italy. +
naturalized in Kashmir +
naturalized in New Zealand +
naturalized in c Europe. +
naturalized in s Africa and e Australia. +
naturalized in scattered locations +
naturalized in temperate regions worldwide. +
naturalized in the Mediterranean region +
naturalized or cultivated circumtropically. +
naturalized throughout temperate areas. +
naturalized). +
nc +
nc Asia. +
nc Mexico. +
nc North America. +
nc United States. +
nc and w Mexico southward to Chiapas. +
ne +
ne Africa +
ne Africa. +
ne Asia +
ne Asia (Japan +
ne Asia (Pacific coast). +
ne Asia (Russia). +
ne Asia (Russian Far East +
ne Asia (Siberia +
ne Asia (e Russian Far East +
ne Asia (ne China +
ne Asia (ne Russian Far East). +
ne Asia (s to Japan). +
ne Asia and nw North America. +
ne Asia. +
ne Australia. +
ne Canada +
ne Europe +
ne India +
ne Mexico +
ne Mexico (Coahuila +
ne Mexico (Tamaulipas). +
ne Mexico. +
ne North America +
ne North America and ne Asia. +
ne Russia +
ne Russia). +
ne South America +
ne South America. +
ne and c Mexico. +
ne arctic Asia. +
near sea level +
nearly cosmopolitan +
nearly cosmopolitan. +
nearly worldwide +
nearly worldwide except boreal and arctic North America and Asia +
nearly worldwide except in Africa +
nearly worldwide in pantropics. +
nearly worldwide in tropical +
nearly worldwide in tropical and warm regions. +
nearly worldwide in tropics and subtropics. +
nearly worldwide on all continents except Antarctica. +
nearly worldwide. +
neotropical +
neotropics +
non-naturalized casual alien). +
north and south temperate regions in North America +
north temperate in forest and montane meadow habitats +
north to 55º +
northern Mexico +
not in Greenland or Aleutian Islands. +
not in saline habitats. +
now world-wide in subtropical and tropical climates. +
nw +
nw Africa +
nw Africa (Algeria +
nw Africa in the Canary Islands. +
nw Africa. +
nw Alaska +
nw Argentina. +
nw Asia +
nw Asia (Russia). +
nw Asia. +
nw Europe +
nw Europe (Spitsbergen) +
nw Europe. +
nw Mexico +
nw Mexico (Baja California +
nw Mexico (Baja California). +
nw Mexico (including Guadalupe Island) +
nw Mexico (including Guadalupe Island). +
nw Mexico (n Baja California). +
nw Mexico to Honduras and El Salvador. +
nw Mexico. +
nw Mongolia). +
nw North Africa. +
nw North America +
nw North America in arctic and subarctic areas. +
nw North America. +
nw Portugal) +
nw South America +
nw South America. +
nw Turkey). +
nw United States +
nw United States including Alaska +
nw United States. +
nw former Soviet republics. +
n Mexico. +
n South America +
oak forests with sycamores +
occasional nearly worldwide. +
occasionally adventive in South America and Europe. +
occasionally fields or roadsides +
occasionally introduced in other parts of the world. +
occasionally introduced in other regions. +
occasionally shrublands on sandy to gravelly soils +
occasionally subtropical regions +
occasionally subtropics +
occurs in the Altai Mountains of Siberia and Mongolia. +
of both humid and arid regions +
of conservation concern +
often becoming naturalized +
often dominant forest trees in temperate +
often escaped in tropical and subtropical countries worldwide. +
often in alkaline or saline habitats. +
often in disturbed areas +
often persisting around gardens and plantations in North America +
often saline +
on moss covered rocks and logs +
one species (E. mesochoreum) in prairies. +
one species extending to tropical mountains of se Asia. +
one species in Old World tropics. +
one species perhaps native to Europe +
one species widespread as a weed. +
only in the flora. +
open sandy places along or near Atlantic coast +
or tropical. +
origin unknown +
original distribution unknown +
other Pacific Islands +
other parts of Asia. +
otherwise not on Arctic coast. +
outlier in Kenya. +
paleotropics. +
pantropical +
pantropical (see discussion below). +
pantropical and southern temperate regions. +
pantropical and warm temperate. +
pantropical and wet +
pantropical regions. +
pantropical to temperate +
pantropical. +
pantropical. native +
part 10). +
particularly savanna in warm-temperate and tropical regions worldwide. +
perhaps Mexico (as Dryopteris tremula H. Christ) +
perhaps ne Africa +
pine +
pine forests +
plus the Southern Hemisphere in cold-temperate to subantarctic regions. +
poorly represented in Eurasia. +
possible in various provinces and states +
possibly Africa. +
possibly Australia. +
possibly Eurasia +
possibly Europe. +
possibly Japan +
possibly Kazakhstan +
possibly n Mexico. +
possibly others in Asia. +
predominantly Indo-Malaysia. +
predominantly tropical to temperate regions. +
predominately northern boreal and temperate regions +
primarily Neotropics +
primarily New World temperate regions. +
primarily New World. +
primarily North America and South America +
primarily South America. +
primarily Southeast Asia +
primarily arid +
primarily cool temperate to subarctic regions +
primarily in boreal regions but also in cool +
primarily in cooler temperate and arctic regions. +
primarily in temperate Asia. +
primarily in temperate areas. +
primarily in tropical and subtropical regions. +
primarily in tropical regions +
primarily in w North America +
primarily neotropical. +
primarily of north-temperate +
primarily of tropical and subtropical regions. +
primarily on calcareous substrates +
primarily on coastal plain. +
primarily paleotropical. +
primarily s and tropical Africa +
primarily temperate regions. +
primarily the Americas. +
primarily tropical and subtropical +
primarily tropical and subtropical regions +
primarily tropical and subtropical regions. +
primarily tropical and warm temperate regions. +
primarily tropical regions +
primarily tropical regions. +
primarily tropical. +
primarily tropics and subtropics +
principal naturalized range (see map) Ont. +
probably Eurasia. +
probably Europe (locally introduced and confused with C. nitidum). +
probably South America (Argentina). +
probably South America. +
probably also adjacent Mexico (Tamaulipas). +
probably elsewhere +
probably elsewhere in n Mexico). +
probably elsewhere. +
probably introduced also in e Europe. +
probably introduced from North America). +
probably introduced in Asia +
probably introduced in Asia (India +
probably introduced). +
probably mostly native in Europe. +
probably native to Near East. +
probably paleotropical in origin +
probably s Asia (India) +
questionably in s South America. +
ranging into the Arctic. +
rare in arctic-alpine climates. +
rarely approaches Arctic coast in Mackenzie Delta +
rarely introduced in Europe and some other regions. +
rather widely distributed +
reaching temperate regions in eastern North America and eastern Asia. +
reaching tropics +
reported from Mexico in Baja California +
reportedly introduced in s Australia. +
restricted to coastal habitats north of Fla. +
restricted to coastal sites southward. +
restricted to high elevations south of Saskatchewan. +
restricted to high elevations south of the Arctic +
restricted to high elevations southward +
restricted to higher elevations southward +
restricted to higher elevations southward. +
roadsides +
ruderal in South America and e Asia. +
s +
s Africa +
s Africa (Cape Peninsula +
s Africa (Cape Province) +
s Africa (Cape region) +
s Africa (Republic of South Africa) +
s Africa (South Africa +
s Africa (winter-rainfall region). +
s Africa. +
s Arabian Peninsula) +
s Argentina) +
s Ariz. +
s Asia +
s Asia (China) +
s Asia (India +
s Asia (India) +
s Asia (India). +
s Asia (Indochina) +
s Asia (n India +
s Asia) +
s Asia. +
s Atlantic Islands +
s Australia. +
s Bolivia +
s Bolivia) +
s Brazil +
s Brazil). +
s Calif. +
s Central America +
s Chile). +
s China +
s England +
s Eurasia +
s Europe +
s Europe (Balkan peninsula) +
s Europe (Balkan peninsula). +
s Europe (England +
s Europe (Italy) +
s Europe (Italy). +
s Europe (Mediterranean region) +
s Europe (Mediterranean region). +
s Europe (Mediterranean regions) +
s Europe (Sardinia +
s Europe (nw Iberian Peninsula). +
s Europe to e Russia. +
s Europe. +
s Fla. +
s Iceland +
s India +
s India). +
s Japan +
s Mexico +
s Mexico (Quintana Roo) +
s Mexico. +
s New Guinea) +
s North America +
s North America (including Mexico) +
s North America to Central America (e Guatemala) +
s North America. +
s Oceanic Islands. +
s Old World +
s Oreg. +
s Pacific Islands +
s Pacific Islands (e to Tahiti and Samoa) +
s Portugal) +
s Rocky Mountains and adjacent areas of the United States. +
s Russia +
s South Africa (Natal). +
s South America +
s South America (Argentina +
s South America (Argentina) +
s South America (Argentina).y +
s South America (Bolivia +
s South America (Chile) +
s South America (Chile). +
s South America (Tierra del Fuego) +
s South America. +
s Spain +
s Spain). +
s United States +
s United States to n Argentina. +
s United States. +
s Utah and n Ariz. +
s and e United States. +
s temperate South America +
s to Chiapas. +
s to Ethiopia) +
s to Oaxaca). +
s to South America. +
s to c Mexico. +
sandy uplands +
sc +
sc Africa (1 species). +
sc Asia +
sc Asia. +
sc North America. +
sc United States +
sc United States. +
scattered in South America (Argentina +
scattered in the Southern Hemisphere. +
scattered in the tropics +
scattered localities +
se +
se Africa +
se Africa. +
se Asia +
se Asia (Borneo +
se Asia (China +
se Asia (India +
se Asia (India & Pakistan to Taiwan) +
se Asia (India) +
se Asia (Indonesia) +
se Asia (Java). +
se Asia (Malaysia) +
se Asia (Malesia) +
se Asia (including Borneo). +
se Asia (including India) +
se Asia (including Indonesia) +
se Asia (se China +
se Asia (to Japan) +
se Asia in Vietnam. +
se Asia. +
se Australia +
se Australia. +
se Bolivia +
se Brazil). +
se China. +
se Europe +
se Europe (Balkans +
se Europe (Caucasus) +
se Europe (sw Russia +
se Europe. +
se Madagascar) +
se Mexico +
se North America +
se North America. +
se South America. +
se United States +
se United States and Cuba. +
se United States. +
se and sc United States +
se and tropical Africa including Madagascar +
se to sc United States +
see below). +
semiarid regions. +
semitropical +
se Asia +
soil or occasionally rock. +
some Old World. +
some are widely cultivated and become ± established in local floras. +
some circumboreal +
some cultivated. +
some established in Old World. +
some in Africa +
some in Asia +
some in South America and Africa. +
some introduced in Old World. +
some species adventive and naturalized in Europe +
some species are widely introduced and established in local floras. +
some species in horticulture almost worldwide. +
some species in temperate zones +
some species introduced in the tropics worldwide. +
some species introduced in tropical regions nearly worldwide. +
some species introduced nearly worldwide. +
some species introduced to and naturalized in the Old World. +
some species locally introduced and naturalized in other regions. +
some species nearly worldwide (as introduced). +
some species of both genera are cultivated and introduced widely. +
some species widely cultivated. +
some species widely introduced and established in local floras. +
some species widely introduced as horticultural escapes. +
some species widely introduced. +
some species widely naturalized. +
some species widely scattered as weeds. +
some species widespread weeds in the southern hemisphere. +
some subtropical +
some temperate +
some temperate North American and South American. +
some temperate regions. +
some tropical and subtropical +
some weedy in New World tropics. +
some widely introduced +
sometimes as naturalized ruderals. +
sometimes escaping and/or persisting. +
south to Hidalgo and the state of Mexico). +
southward in w Cordillera +
southward into n Mexico and n Africa. +
sparingly adventive). +
sporadic in South America and northern Africa. +
sporadic in e U.S. +
sporadically introduced in Southern Hemisphere. +
state of México +
stream banks +
sub-Saharan Africa +
subalpine +
subantarctic Islands +
subarctic +
subarctic Eurasia. +
subarctic to Arctic regions. +
subtropical +
subtropical (and warm temperate) areas worldwide. +
subtropical Americas +
subtropical and tropical +
subtropical and tropical areas. +
subtropical and tropical regions of Mexico +
subtropical and tropical regions. +
subtropical or tropical regions. +
subtropics +
sunny +
sw +
sw Africa +
sw Ariz. +
sw Arizona +
sw Asia +
sw Asia (Afghanistan +
sw Asia (Arabian Peninsula) +
sw Asia (Asia Minor +
sw Asia (Caucasus +
sw Asia (Caucasus Mountains +
sw Asia (China +
sw Asia (India) +
sw Asia (Iran) +
sw Asia (Israel +
sw Asia (Jordan) +
sw Asia (Mediterranean region to the Himalayas). +
sw Asia (Middle East) +
sw Asia (Syria +
sw Asia (Turkey) +
sw Asia (n Iran +
sw Asia (to Kashmir) +
sw Asia (w Arabian Peninsula) +
sw Asia from e Mediterranean region to Himalayas. +
sw Asia. +
sw Australia. +
sw Calif. +
sw Canada. +
sw China +
sw Europe +
sw Europe (France +
sw Europe (Mediterranean region). +
sw Europe (c +
sw Europe. +
sw India +
sw Italy) +
sw Mexico +
sw Mexico) +
sw North America +
sw North America and nw Mexico. +
sw North America. +
sw Oreg. +
sw Pacific Islands +
sw Russia +
sw South America +
sw South America. +
sw Spain +
sw United States +
sw United States to nw Argentina +
sw United States. +
sw and sc United States +
swAsia +
swales +
temperate +
temperate Asia +
temperate Asia. +
temperate Eurasia +
temperate Eurasia (especially c +
temperate Eurasia. +
temperate Europe +
temperate Europe (including Mediterranean region) +
temperate North America +
temperate North America. +
temperate South America +
temperate South America. +
temperate and arctic-alpine regions. +
temperate and boreal forests +
temperate and subarctic regions. +
temperate and subtropical +
temperate and subtropical regions +
temperate and subtropical regions. +
temperate and tropical areas. +
temperate and tropical regions. +
temperate and warm regions. +
temperate areas. +
temperate deciduous and mixed forests +
temperate deciduous forests +
temperate e Asia +
temperate e Asia. +
temperate e North America. +
temperate regions +
temperate regions. +
temperate s South America +
temperate to alpine areas. +
temperate to arctic and alpine areas. +
temperate to arctic and alpine regions. +
temperate to arctic-alpine regions +
temperate to boreal regions +
temperate to boreal regions. +
temperate to cool temperate latitudes in the Northern Hemisphere. +
temperate to dry-mesic tropical regions. +
temperate to high-altitude tropical regions. +
temperate to pantropical regions. +
temperate to subpolar regions +
temperate to subpolar regions and tropical mountains. +
temperate to subtropical areas. +
temperate to tropical areas. +
temperate to tropical regions. +
temperate zones worldwide +
terrestrial habitats +
terrestrial habitats in temperate +
the Himalayas +
the Mascarene Islands +
the Netherlands +
the Pacific Islands +
the greater numbers of genera and species in the southern hemisphere. +
the primary center in the planalto of Brazil. +
three of which are discoid. +
throughout Central America +
throughout temperate and boreal latitudes in the Northern Hemisphere +
to Africa (including Madagascar). +
to Africa. +
to Central America (Guatemala). +
to South America. +
to s New Guinea +
tropical +
tropical Africa +
tropical Africa (including Madagascar) +
tropical Africa. +
tropical America +
tropical America. +
tropical Asia +
tropical Asia (including Indonesia) +
tropical Asia at higher elevations +
tropical Asia. +
tropical Atlantic Islands +
tropical Australia. +
tropical East Africa +
tropical North America and Mediterranean regions +
tropical Pacific Islands +
tropical South America +
tropical South America. +
tropical and s Africa +
tropical and subtropical +
tropical and subtropical Asia +
tropical and subtropical areas +
tropical and subtropical areas. +
tropical and subtropical coasts. +
tropical and subtropical dry forest +
tropical and subtropical mangrove habitats. +
tropical and subtropical regions +
tropical and subtropical regions in the New World +
tropical and subtropical regions of the New World. +
tropical and subtropical regions. +
tropical and subtropical. +
tropical and temperate regions. +
tropical and temperate worldwide. +
tropical and warm temperate climates. +
tropical and warm temperate regions. +
tropical and warm-temperate regions. +
tropical areas +
tropical areas. +
tropical e Africa. +
tropical e Asia +
tropical mountains (s of equator in Africa). +
tropical mountains. +
tropical parts of Africa +
tropical regions +
tropical regions of s Mexico +
tropical regions. +
tropical to north temperate regions +
tropical to south temperate regions. +
tropical to subarctic regions. +
tropical to subpolar regions. +
tropical to subtropical or temperate regions +
tropical to temperate regions. +
tropical to warm temperate regions in Eurasia and Africa. +
tropical to warm temperate regions. +
tropical to warm-temperate regions. +
tropics +
tropics and subtropics +
tropics and subtropics. +
two species in tropical mountains of southeast Asia. +
usually Southern Hemisphere. +
usually in sandy soil +
usually not naturalized +
usually oligotrophic +
very rare in regions with high or very low precipitation +
w +
w Africa +
w Africa. +
w Asia +
w Asia (Caucasus +
w Asia (Iran) +
w Asia (Saudi Arabia) +
w Asia (Turkey). +
w Asia (n Iran +
w Asia (n Siberia) +
w Asia (the Caucasus +
w Asia) +
w Asia. +
w Australia. +
w Canada +
w China +
w China) +
w Cuba). +
w Eurasia +
w Eurasia (including Middle East). +
w Eurasia. +
w Europe +
w Europe (Guernsey) +
w Europe (Ireland) +
w Europe (Ireland). +
w Europe (Portugal) +
w Europe (Scotland +
w Europe (United Kingdom). +
w Europe (s France +
w Europe (s Portugal) +
w Europe (se France +
w Europe (widely cultivated +
w Europe. +
w Georgia +
w Mediterranean region +
w Mexico +
w Mexico. +
w North America +
w North America (Calif.). +
w North America (United States) +
w North America (incl. n Mexico). +
w North America (including Mexico) +
w North America (including Mexico). +
w North America (including n Mexico). +
w North America (including nw Mexico) +
w North America including Mexico (Baja California). +
w North America including n Mexico +
w North America including n Mexico (Baja California +
w North America. +
w Oreg. +
w Pacific Islands +
w Pacific Islands (Fiji +
w Pacific Islands (Hawaii +
w Pacific Islands (Indonesia +
w Pacific Islands (Philippines) +
w Pacific Islands. +
w Pacific. +
w Russia) +
w Siberia) +
w Siberia). +
w South America +
w South America (primarily Andean) +
w South America. +
w Sweden) +
w United States +
w United States and Canada. +
w United States. +
w and c North America +
w and n North America +
w and s South America +
w coast +
w temperate Asia +
w. Asia. +
walnuts and alders +
warm and tropical regions. +
warm desert regions. +
warm regions of the New World. +
warm temperate and tropical areas. +
warm temperate and tropical coasts of Eurasia +
warm temperate areas +
warm temperate areas. +
warm-temperate and tropical areas. +
warm-temperate and tropical regions. +
warm-temperate areas. +
warm-temperate regions. +
warm-temperate to dry-mesic tropical regions. +
warm-temperate to tropical areas +
warm-temperate to tropical areas. +
warm-temperate zones. +
water +
wc Asia (Turkmenistan) +
wc Calif. +
wc North America +
wc North America. +
well represented in the north temperate zone. +
well represented in the north-temperate zone. +
wetlands +
where often cultivated. +
where rare). +
which is north temperate). +
which occurs only in South America +
widely adventive elsewhere. +
widely adventive. +
widely cultivated +
widely cultivated and often naturalized in tropical +
widely cultivated elsewhere. +
widely cultivated in temperate areas. +
widely cultivated in tropical and subtropical regions. +
widely cultivated throughout the tropics. +
widely cultivated. +
widely elsewhere. +
widely escaped from cultivation. +
widely established in Old World. +
widely introduced elsewhere. +
widely introduced in Central America +
widely introduced in New World and Old World. +
widely introduced in Old World. +
widely introduced in s Europe +
widely introduced or naturalized in tropical +
widely introduced throughout the tropics and warm-temperate regions. +
widely introduced worldwide through ornamental horticulture. +
widely introduced worldwide. +
widely introduced. +
widely naturalized (Australia +
widely naturalized elsewhere +
widely naturalized elsewhere. +
widely naturalized in New World and Old World. +
widely naturalized in Old World tropics and subtropics. +
widely naturalized in tropical Africa. +
widely scattered worldwide in tropical and subtropical regions. +
widespread +
widespread in the tropics of both hemispheres +
widespread in tropical highlands +
widespread throughout temperate +
widespread. +
with a few boreal taxa. +
with a few species in South America and Africa. +
with centers of concentration in southern Africa and Australia +
with extensions into temperate areas. +
with few temperate outliers in Europe +
with greater diversity in w South America. +
with greatest diversity in w Mediterranean region. +
with only a few North temperate representatives. +
with the highest diversity in the Irano-Turanian region +
worldwide +
worldwide except Australia. +
worldwide in temperate to subtropical and tropical areas. +
worldwide in tropical and subtropical regions. +
worldwide in tropical areas except Africa. +
worldwide in tropics and subtropics +
worldwide weeds (e.g. +
worldwide. +
Îles Crozet +
Îles Kerguelen +
locally introduced or naturalized in tropical to warm-temperate regions of the globe. +
moist montane and oceanic habitats such as nutrient-poor and acidic wetlands and mires. +
mostly temperate Europe (some widely cultivated and sparingly adventive). +
now widely established in tropical and warm-temperate regions as naturalized ruderals. +
often persisting around gardens and plantations throughout the wet tropics. +
pantropical in wet to seasonally dry regions at relatively low to moderate elevations with temperate outliers in South America (Argentina +
primarily in temperate latitudes and at higher elevations in the tropics. +
primarily tropical and subtropical regions. The second genus in Racopilaceae is Powellia Mitten with six Asian species. +
primarily tropical and subtropical with a few genera in warm temperate to temperate regions. +
ranging from arctic to subtropics in East Asia and Cordilleran North America and Central America. +
rarely in temperate and low-elevation areas of North America and Eurasia. +
several species widely naturalized in temperate and tropical areas of the world. +
some species cultivated and introduced in temperate and tropical regions worldwide. +
some taxa are at present almost worldwide as introduced and naturalized weeds. +
some taxa occur in many regions of the world as naturalized or casual aliens. +
terrestrial habitats at low to high elevations predominately in temperate and boreal regions. +
three species reaching North America in native distribution (Omalotheca sylvatica perhaps not native +
tropical and subtropical regions in the New World from central Mexico and the West Indies southward to northern Argentina. +
uncommon in South America (Argentina and Chile) and e North America (W.Va. s to c Fla. +
widely cultivated and often escaped throughout tropical regions of the world. +
widely naturalized throughout the tropics and warm-temperate regions of the world. +
widespread throughout boreal to north temperate zones and subalpine regions. +