familyCactaceae
subfamilyCactaceae subfam. Opuntioideae
genusCylindropuntia
speciesCylindropuntia acanthocarpa
Cylindropuntia acanthocarpa var. thornberi
Cactaceae 1: 184. 1958.
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
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
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Cylindropuntia acanthocarpa var. thornberi"
divergent +
major +
ascending-divergent +
major +
inconspicuous +
small +
yellow +
cushionlike +
arillate +
adjacent +
elliptic +
bristlelike +
absent +
longest +
few-to-many +
longest +
sessile +
symmetric +
proliferating +
arising +
Thornber cholla +
large +
Ariz. +
funicular +
osseous +
separating +
intact +
deciduous +
pistillate +
symmetric +
arranged +
diurnal +
abscising +
bisexual +
adnate +
epigynous +
spineless +
drying +
indehiscent +
tuberculate +
funicular +
absent +
Sonoran and Mojave deserts, desert grasslands, chaparral transition areas, rocky hills, ridges +
dense +
apiculate-emarginate +
spatulate +
sessile +
alternate +
deciduous +
absent +
vestigial +
succulent +
tuberculate +
fluted;spheric;depressed-spheric or club-shaped +
tinged color +
specialized +
sepal-like +
true +
surrounding +
sunken +
abscising +
epigynous +
compound +
parietal +
3;14 +
not reticulate +
spinulo-punctate +
coalescent +
Cactaceae +
1958 +
vertical +
3;2;2;30 +
minute +
diffuse +
tuberlike +
deep +
adjacent +
developing +
0.4mm;12mm +
absent +
glabrous +
1;400 +
warped;squarish;angular +
persistent +
detachable +
tight-fitting +
Endemic +
not sheathed +
barbed +
interlacing +
pliable +
aging +
absent +
conspicuous +
roughened +
flattened +
50;1500 +
decurrent +
gray-green +
attached +
dislodged +
glabrous +
tuberculate +
segmented +
1;3;14 +
absent +
adventitious +
tuberlike +
Cylindropuntia acanthocarpa var. thornberi +
Cylindropuntia acanthocarpa +
variety +
5;50 +
distinct +
absent +
prominent +
broad +
shallow +
single +
protruding +
enlarged +
branched +
terrestrial;epiphytic or epipetric +
aging +
feltlike +