Difference between revisions of "Boerhavia erecta"
Sp. Pl. 1: 3. 1753.
Common names: Erect spiderling
Illustrated
FNA>Volume Importer |
imported>Volume Importer |
||
| (7 intermediate revisions by 2 users not shown) | |||
| Line 8: | Line 8: | ||
}} | }} | ||
|common_names=Erect spiderling | |common_names=Erect spiderling | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms= | |synonyms= | ||
| Line 17: | Line 21: | ||
}}<!-- | }}<!-- | ||
| − | --><span class="statement" id="st- | + | --><span class="statement" id="st-undefined" data-properties=""><b>Herbs,</b> annual [slightly woody at base]; taproot tapered, soft or ± woody. <b>Stems</b> usually erect, sometimes decumbent, profusely branched primarily distally, 2–12 dm, minutely puberulent with bent hairs basally, usually glabrous, rarely sparsely puberulent distally. <b>Leaves</b> mostly in basal 1/2 of plant; larger leaves with petiole 6–40(–55) mm, blade broadly rhombic-ovate, triangular-ovate, ovate, oval, or lanceolate, 20–50(–80) × 10–45 mm (distal leaves smaller, proportionately narrower), adaxial surface usually glabrous, sometimes minutely puberulent, usually minutely punctate, abaxial surface slightly paler than adaxial, usually glabrous, sometimes minutely puberulent, usually punctate with small patches of small brown cells, base obtuse to round, margins entire or sinuate, apex usually acute, less often obtuse or rounded. <b>Inflorescences</b> terminal, forked ca. 4–6 times ± evenly, diffuse, usually with sticky internodal bands; branches strongly ascending, terminating in irregular umbellate or subracemose clusters of flowers, not all pedicels attaching at same point (flowers occasionally borne singly). <b>Flowers</b>: pedicel (0–)0.3–2.5(–5) mm; bracts at base of perianth deciduous, usually 2, narrowly to broadly lanceolate, 0.5–1 mm, apex often acuminate; perianth whitish, usually tinged with pink or purple [bright pink] between lobes and in tube, campanulate beyond constriction, 1–1.5 mm; stamens 2–4, slightly exserted. <b>Fruits</b> 1–11 per cluster, pale greenish to straw colored or tan, narrowly obconic, (2.7–)3–3.5[–4] × 1.2–1.5 mm (l/w: (2–)2.3–3.2), apex truncate or broadly low conic, glabrous; ribs 5, acute, slightly rugose adjacent to sulci; sulci 0.5–1 times as wide as base of ribs, slightly to prominently coarsely transverse rugose, not papillate.</span><!-- |
-->{{Treatment/Body | -->{{Treatment/Body | ||
| + | |phenology=Flowering early summer-mid fall. | ||
|habitat=Disturbed areas, gardens, road and railroad rights-of-way, stream beds | |habitat=Disturbed areas, gardens, road and railroad rights-of-way, stream beds | ||
|elevation=0-1700 m [probably much higher in tropics] | |elevation=0-1700 m [probably much higher in tropics] | ||
|distribution=Ala.;Ariz.;Ark.;Fla.;Ga.;La.;Md.;Miss.;Mo.;N.Mex.;N.C.;Okla.;S.C.;Tenn.;Tex.;Mexico;West Indies;Central America;South America;widely introduced throughout the tropics and warm-temperate regions. | |distribution=Ala.;Ariz.;Ark.;Fla.;Ga.;La.;Md.;Miss.;Mo.;N.Mex.;N.C.;Okla.;S.C.;Tenn.;Tex.;Mexico;West Indies;Central America;South America;widely introduced throughout the tropics and warm-temperate regions. | ||
| − | |discussion=<p>Boerhavia erecta occasionally forms mixed populations with B. intermedia without apparent intergradation. Rarely, some specimens seem to combine features of either species, particularly with regard to inflorescence structure. This is especially so in Sonora, Mexico, and in parts of the Sonoran Desert in Arizona. The two species bloom simultaneously and are visited by small insects. Given the presumed close relationship and weedy habitats of each, hybridization seems possible. Usually, the two species can be distinguished by the differences in fruit length, the appearance of a crownlike apex of the nearly mature fruits of B. erecta (apex of ridges slightly expanded, apex of fruit slightly conic), and the more precisely constructed terminal umbels of B. intermedia. Both species, particularly B. intermedia, may produce entire inflorescences with branches terminating in single flowers. R. E. Woodson Jr. and H. J. Kidd (1961) suggested that B. erecta hybridizes with the perennial B. diffusa.</p> | + | |discussion=<p><i>Boerhavia erecta</i> occasionally forms mixed populations with <i>B. intermedia</i> without apparent intergradation. Rarely, some specimens seem to combine features of either species, particularly with regard to inflorescence structure. This is especially so in Sonora, Mexico, and in parts of the Sonoran Desert in Arizona. The two species bloom simultaneously and are visited by small insects. Given the presumed close relationship and weedy habitats of each, hybridization seems possible. Usually, the two species can be distinguished by the differences in fruit length, the appearance of a crownlike apex of the nearly mature fruits of <i>B. erecta</i> (apex of ridges slightly expanded, apex of fruit slightly conic), and the more precisely constructed terminal umbels of <i>B. intermedia</i>. Both species, particularly <i>B. intermedia</i>, may produce entire inflorescences with branches terminating in single flowers. R. E. Woodson Jr. and H. J. Kidd (1961) suggested that <i>B. erecta</i> hybridizes with the perennial <i>B. diffusa</i>.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 32: | Line 37: | ||
-->{{#Taxon: | -->{{#Taxon: | ||
name=Boerhavia erecta | name=Boerhavia erecta | ||
| − | |||
|authority=Linnaeus | |authority=Linnaeus | ||
|rank=species | |rank=species | ||
| Line 39: | Line 43: | ||
|basionyms= | |basionyms= | ||
|family=Nyctaginaceae | |family=Nyctaginaceae | ||
| + | |phenology=Flowering early summer-mid fall. | ||
|habitat=Disturbed areas, gardens, road and railroad rights-of-way, stream beds | |habitat=Disturbed areas, gardens, road and railroad rights-of-way, stream beds | ||
|elevation=0-1700 m [probably much higher in tropics] | |elevation=0-1700 m [probably much higher in tropics] | ||
| Line 45: | Line 50: | ||
|publication title=Sp. Pl. | |publication title=Sp. Pl. | ||
|publication year=1753 | |publication year=1753 | ||
| − | |special status= | + | |special status=Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_32.xml |
|genus=Boerhavia | |genus=Boerhavia | ||
|species=Boerhavia erecta | |species=Boerhavia erecta | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
}}<!-- | }}<!-- | ||
-->[[Category:Treatment]][[Category:Boerhavia]] | -->[[Category:Treatment]][[Category:Boerhavia]] | ||
Latest revision as of 21:57, 5 November 2020
Herbs, annual [slightly woody at base]; taproot tapered, soft or ± woody. Stems usually erect, sometimes decumbent, profusely branched primarily distally, 2–12 dm, minutely puberulent with bent hairs basally, usually glabrous, rarely sparsely puberulent distally. Leaves mostly in basal 1/2 of plant; larger leaves with petiole 6–40(–55) mm, blade broadly rhombic-ovate, triangular-ovate, ovate, oval, or lanceolate, 20–50(–80) × 10–45 mm (distal leaves smaller, proportionately narrower), adaxial surface usually glabrous, sometimes minutely puberulent, usually minutely punctate, abaxial surface slightly paler than adaxial, usually glabrous, sometimes minutely puberulent, usually punctate with small patches of small brown cells, base obtuse to round, margins entire or sinuate, apex usually acute, less often obtuse or rounded. Inflorescences terminal, forked ca. 4–6 times ± evenly, diffuse, usually with sticky internodal bands; branches strongly ascending, terminating in irregular umbellate or subracemose clusters of flowers, not all pedicels attaching at same point (flowers occasionally borne singly). Flowers: pedicel (0–)0.3–2.5(–5) mm; bracts at base of perianth deciduous, usually 2, narrowly to broadly lanceolate, 0.5–1 mm, apex often acuminate; perianth whitish, usually tinged with pink or purple [bright pink] between lobes and in tube, campanulate beyond constriction, 1–1.5 mm; stamens 2–4, slightly exserted. Fruits 1–11 per cluster, pale greenish to straw colored or tan, narrowly obconic, (2.7–)3–3.5[–4] × 1.2–1.5 mm (l/w: (2–)2.3–3.2), apex truncate or broadly low conic, glabrous; ribs 5, acute, slightly rugose adjacent to sulci; sulci 0.5–1 times as wide as base of ribs, slightly to prominently coarsely transverse rugose, not papillate.
Phenology: Flowering early summer-mid fall.
Habitat: Disturbed areas, gardens, road and railroad rights-of-way, stream beds
Elevation: 0-1700 m [probably much higher in tropics]
Distribution
Ala., Ariz., Ark., Fla., Ga., La., Md., Miss., Mo., N.Mex., N.C., Okla., S.C., Tenn., Tex., Mexico, West Indies, Central America, South America, widely introduced throughout the tropics and warm-temperate regions.
Discussion
Boerhavia erecta occasionally forms mixed populations with B. intermedia without apparent intergradation. Rarely, some specimens seem to combine features of either species, particularly with regard to inflorescence structure. This is especially so in Sonora, Mexico, and in parts of the Sonoran Desert in Arizona. The two species bloom simultaneously and are visited by small insects. Given the presumed close relationship and weedy habitats of each, hybridization seems possible. Usually, the two species can be distinguished by the differences in fruit length, the appearance of a crownlike apex of the nearly mature fruits of B. erecta (apex of ridges slightly expanded, apex of fruit slightly conic), and the more precisely constructed terminal umbels of B. intermedia. Both species, particularly B. intermedia, may produce entire inflorescences with branches terminating in single flowers. R. E. Woodson Jr. and H. J. Kidd (1961) suggested that B. erecta hybridizes with the perennial B. diffusa.
Selected References
None.
Lower Taxa
None.