familyCactaceae
subfamilyCactaceae subfam. Opuntioideae
genusCylindropuntia
speciesCylindropuntia acanthocarpa
varietyCylindropuntia acanthocarpa var. thornberi

Cylindropuntia acanthocarpa var. thornberi

(Thornber & Bonker) Backeberg

Cactaceae 1: 184. 1958.

Donald J. Pinkava
Common names: Thornber cholla
Endemic
Basionym: Opuntia thornberi Thornber & Bonker Fantast. Clan, 133, 135 (fig.), 148. 1932
Synonyms: Opuntia acanthocarpa var. thornberi (Thornber & Bonker) L. D. Benson
Treatment appears in FNA Volume 4. Treatment on page 117. Mentioned on page 103, 116.

Shrubs, with few-to-many branches, at acute and obtuse angles. Stem segments gray-green, 10–25 (–50) cm; tubercles very prominent and broad, 2.5–4.5 cm. Spines 6–11 (–14) per areole, rarely interlacing with spines of adjacent areoles, yellow to deep redbrown, aging gray, not baggy sheathed; major abaxial spines usually deflexed and spreading. Flowers: inner tepals yellow to bronze. Fruits bearing few spines, sometimes spineless; areoles 12–20.2n = 22.


Phenology: Flowering mid-late spring (Apr–Jun).
Habitat: Sonoran and Mojave deserts, desert grasslands, chaparral transition areas, rocky hills, ridges
Elevation: 600-1500 m

Distribution

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Ariz.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Cylindropuntia acanthocarpa var. thornberi"
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2n chromosome quantity
22 +
Abaxial spine arrangement
divergent +
Abaxial spine orientation
Spreading - Deflexed +
Abaxial spine shape
subterete +  and flattened +
Abaxial spine size
major +
Adaxial spine arrangement
ascending-divergent +
Adaxial spine coloration
gray +, tan +  and deep redbrown +
Adaxial spine life cycle
aging +
Adaxial spine shape
Terete - ? +
Adaxial spine size
major +
Adaxial tuft prominence
inconspicuous +
Adaxial tuft size
small +
Angle shape
obtuse +  and acute +
Anther coloration
yellow +
Appearance shape
cushionlike +
Appendage architecture
arillate +
Appendage pubescence or texture
corky +
Areole arrangement
adjacent +
Areole arrangement or shape
elliptic +
Areole coloration
gray +  and tan +
Areole diameter
0.07 cm0.7 mm <br />7.0e-4 m <br /> - 0.5 cm5 mm <br />0.005 m <br /> +
Areole duration
deciduous +  and persistent +
Areole length
0.4 cm4 mm <br />0.004 m <br /> - 0.55 cm5.5 mm <br />0.0055 m <br /> +
Areole margin architecture
bristlelike +
Areole margin height or length or size
short +
Areole margin quantity
0 - 5 +
Areole presence
absent +
Areole prominence
Conspicuous - Obscure +
Areole quantity
12 +  and 20 +
Areole shape
elliptic +  and subcircular +
Areole width
0.4 cm4 mm <br />0.004 m <br /> - 0.5 cm5 mm <br />0.005 m <br /> +
Author
Donald J. Pinkava +
Authority
- Thornber & Bonker Backeberg +
Basal tubercle length
longest +
Basionyms
Opuntia thornberi +
Branch quantity
few-to-many +
Central spine atypical some measurement
3 cm30 mm <br />0.03 m <br /> - 3.8 cm38 mm <br />0.038 m <br /> +
Central spine length
longest +
Central spine some measurement
1.2 cm12 mm <br />0.012 m <br /> - 3 cm30 mm <br />0.03 m <br /> +
Chain architecture
sessile +
Chain architecture or shape
symmetric +
Chain life cycle
proliferating +
Chain orientation
arising +
Cladode length or size
long +
Cladode shape
flattened +  and cylindric +
Common name
Thornber cholla +
Depression quantity
2 - 4 +
Depression size
large +
Distribution
Ariz. +
Elevation
600-1500 m +
Envelope derivation
funicular +
Envelope texture
osseous +
Epidermis arrangement
separating +
Epidermis condition
intact +
Epidermis sheath duration
deciduous +
Filament coloration
red +
Flower architecture
pistillate +
Flower architecture or arrangement or growth form
solitary +
Flower architecture or shape
symmetric +
Flower arrangement
arranged +
Flower duration
diurnal +
Flower part life cycle
abscising +
Flower quantity
1 +
Flower reproduction
bisexual +
Flower shape
salverform +, cup-shaped +  and rotate +
Flower tube atypical some measurement
15 cm150 mm <br />0.15 m <br /> - 30 cm300 mm <br />0.3 m <br /> +
Flower tube fusion
adnate +
Flower tube height or length or size
short +
Flower tube position
epigynous +
Flower tube some measurement
0.2 cm2 mm <br />0.002 m <br /> - 15 cm150 mm <br />0.15 m <br /> +
Fruit architecture
spineless +
Fruit architecture or shape
spiny +
Fruit coloration
tan +
Fruit condition
drying +
Fruit condition or texture
dry +
Fruit dehiscence
indehiscent +
Fruit duration
persistent +, long +  and deciduous +
Fruit length
1.5 cm15 mm <br />0.015 m <br /> - 3.5 cm35 mm <br />0.035 m <br /> +
Fruit relief
tuberculate +
Fruit shape
obconic +  and ellipsoid +
Fruit texture
dry +  and fleshy +
Fruit width
1.5 cm15 mm <br />0.015 m <br /> - 2 cm20 mm <br />0.02 m <br /> +
Girdle architecture or pubescence or relief
smooth +
Girdle derivation
funicular +
Glochid coloration
Yellow - Brown +
Glochid presence
absent +
Glochid some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> - 0.2 cm2 mm <br />0.002 m <br /> +
Habitat
Sonoran and Mojave deserts, desert grasslands, chaparral transition areas, rocky hills, ridges +
Hair density
dense +
Illustration copyright
Flora of North America Association +
Illustrator
John Myers +
Inflorescence derivation
true +
Inner tepal architecture or shape
apiculate-emarginate +
Inner tepal coloration
Yellow - ? +  and Bronze - ? +
Inner tepal shape
spatulate +
Inner tepal some measurement
2 cm20 mm <br />0.02 m <br /> - 3 cm30 mm <br />0.03 m <br /> +
Leaf architecture
sessile +
Leaf arrangement
alternate +
Leaf duration
deciduous +
Leaf presence
absent +
Leaf prominence
vestigial +
Leaf shape
flattened +  and conic +
Leaf some measurement
0 cm0 mm <br />0 m <br /> - 3 cm30 mm <br />0.03 m <br /> +
Leaf texture
succulent +
Long-shoot architecture or pubescence or relief
smooth +
Long-shoot relief
tuberculate +
Long-shoot shape
fluted;spheric;depressed-spheric or club-shaped +
Margin coloration
tinged color +
Marginal ridge position
low +
Nectar chamber development
specialized +
Nectary architecture
sometimes covered by outgrowths of proximal portion of style base or of flower tube wall +  and open +
Number of lower taxa
0 +
Outer tepal architecture or shape
sepal-like +
Outer tepal coloration
Green - ? +
Outer tepal shape
Bractlike - ? +
Ovary derivation
true +
Ovary position relational
surrounding +
Ovary prominence
sunken +
Perianth duration
persistent +  and deciduous +
Perianth life cycle
abscising +
Perianth position
epigynous +
Phenology
Flowering mid-late spring - Apr–Jun. +
Pistil architecture
compound +
Pistil architecture or structure in adjective form
1-locular +
Placenta arrangement
parietal +
Placenta atypical quantity
14 - 20 +
Placenta quantity
3;14 +
Pollen architecture or coloration or relief
not reticulate +
Pollen coloration or relief
spinulo-punctate +
Protuberance fusion
coalescent +
Protuberance shape
ridgelike +  and nipple--shaped +
Publication title
Cactaceae +
Publication year
1958 +
Reference
None +
Rib atypical quantity
30 - 40 +
Rib orientation
vertical +
Rib quantity
3;2;2;30 +
Rib short-shoot architecture or shape
barbed +
Rib short-shoot size
minute +
Root density
diffuse +
Root shape
tuberlike +
Scar depth
deep +
Scar prominence or shape
flat +
Seed arrangement
adjacent +
Seed atypical quantity
0 - 5 +
Seed coloration
pale-yellow +  and tan +
Seed development
developing +
Seed diameter
0.4mm;12mm +
Seed length
0.35 cm3.5 mm <br />0.0035 m <br /> - 0.5 cm5 mm <br />0.005 m <br /> +
Seed presence
absent +
Seed pubescence
glabrous +
Seed quantity
1;400 +
Seed shape
warped;squarish;angular +
Seed some measurement
0.19 cm1.9 mm <br />0.0019 m <br /> - 0.7 cm7 mm <br />0.007 m <br /> +
Seed width
0.3 cm3 mm <br />0.003 m <br /> - 0.45 cm4.5 mm <br />0.0045 m <br /> +
Segment duration
persistent +
Segment fragility
detachable +
Sheath coloration
White - Grayish +
Sheath size
tight-fitting +
Side architecture or pubescence or relief
smooth +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V4/V4 224.xml +
Special status
Endemic +
Spine architecture
not sheathed +
Spine architecture or pubescence or relief
smooth +
Spine architecture or shape
barbed +
Spine arrangement
interlacing +
Spine atypical quantity
11 - 14 +
Spine coloration
gray +, yellow +  and deep redbrown +
Spine duration
deciduous +  and persistent +
Spine fragility
pliable +
Spine height or length or size
short +
Spine life cycle
aging +
Spine presence
absent +
Spine prominence
conspicuous +
Spine quantity
Few - ? +, 6 - ? +  and 11 - ? +
Spine relief or texture
roughened +
Spine shape
flattened +
Spine size
Major - ? +
Spine texture
hard +  and rigid +
Stamen quantity
50;1500 +
Stamen shape
decurrent +
Stem architecture
winged +  and unsegmented +
Stem relief
tuberculate +  and smooth +
Stem segment atypical length
30 cm300 mm <br />0.3 m <br /> - 50 cm500 mm <br />0.5 m <br /> +
Stem segment atypical some measurement
25 cm250 mm <br />0.25 m <br /> - 50 cm500 mm <br />0.5 m <br /> +
Stem segment atypical width
2.5 cm25 mm <br />0.025 m <br /> - 3 cm30 mm <br />0.03 m <br /> +
Stem segment coloration
gray-green +
Stem segment course
Straight - Curved +
Stem segment fixation
attached +
Stem segment fragility
dislodged +
Stem segment length
10 cm100 mm <br />0.1 m <br /> - 30 cm300 mm <br />0.3 m <br /> +
Stem segment pubescence
glabrous +
Stem segment relief
tuberculate +
Stem segment shape
Cylindric - ? +
Stem segment some measurement
10 cm100 mm <br />0.1 m <br /> - 25 cm250 mm <br />0.25 m <br /> +
Stem segment width
2 cm20 mm <br />0.02 m <br /> - 2.5 cm25 mm <br />0.025 m <br /> +
Stem shape
segmented +
Stem texture
woody +  and succulent +
Stigma lobe atypical quantity
14 - 20 +
Stigma lobe coloration
white +  and light green +
Stigma lobe quantity
1;3;14 +
Stipule presence
absent +
Style coloration
white +  and light green +
Style quantity
1 +
Synonyms
Opuntia acanthocarpa var. thornberi +
Taproot derivation
adventitious +
Taproot shape
tuberlike +
Taxon family
Cactaceae +
Taxon habitat
epipetric +  and epiphytic +
Taxon name
Cylindropuntia acanthocarpa var. thornberi +
Taxon parent
Cylindropuntia acanthocarpa +
Taxon rank
variety +
Tepal quantity
5;50 +
Testa reflectance
dull +  and glossy +
Tip coloration
yellow +  and golden +
Tubercle fusion
distinct +
Tubercle presence
absent +
Tubercle prominence
prominent +
Tubercle some measurement
2.5 cm25 mm <br />0.025 m <br /> - 4.5 cm45 mm <br />0.045 m <br /> +
Tubercle width
broad +
Umbilicus depth
shallow +
Unit quantity
single +
Vascular-bundle prominence
protruding +
Vascular-bundle size
enlarged +
Volume
Volume 4 +
Whole organism architecture
branched +
Whole organism architecture or arrangement or growth form
solitary +
Whole organism atypical some measurement
200 cm2,000 mm <br />2 m <br /> - 400 cm4,000 mm <br />4 m <br /> +
Whole organism growth form
shrub +
Whole organism habitat
terrestrial;epiphytic or epipetric +
Whole organism orientation
erect +
Whole organism quantity
Many - ? +
Whole organism some measurement
1m - 2m +
Wool coloration
gray-black +, yellowish +  and tan +
Wool height or length or size
short +
Wool life cycle
aging +
Wool pubescence
feltlike +
X chromosome quantity
11 +