Opuntia engelmannii var. flavispina
Madroño 35: 348. 1988.
Basionym: Opuntia phaeacantha var. flavispina L. D. Benson Cact. Succ. J. (Los Angeles) 46: 79. 1974
Stem segments obovate, 15–23 × 14–18 cm, to 1.5 times longer than wide. Spines (0–) 1–7 per areole, evenly distributed on stem segments, arching downward, yellow with extreme reddish-brown basal portions, aging deep red to black, often twisted, the longest 65–75 mm, smaller ones depressed, whitish. 2n = 66.
Phenology: Flowering spring (Apr–May).
Habitat: Sonoran Desert, sandy bajadas
Elevation: 500-800 m
Distribution
Ariz., Mexico (Sonora)
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Opuntia engelmannii var. flavispina"
continuous +
15cm;40cm +
tuberculate +
10cm;40cm +
cushionlike +
arillate +
distributed +
elliptic +
absent +
sessile +
symmetric +
proliferating +
arising +
shallow +
large +
funicular +
osseous +
separating +
intact +
reddish-brown +
staminate +
symmetric +
arranged +
diurnal +
abscising +
bisexual +
adnate +
epigynous +
dark red;purple +
drying +
straight +
indehiscent +
proliferating +
glabrous +
juicy +
protruding +
sparse +
absent +
dense +
emarginate-apiculate +
sessile +
alternate +
deciduous +
absent +
vestigial +
succulent +
tuberculate +
fluted;spheric;depressed-spheric or club-shaped +
determinate +
terete +
tinged color +
specialized +
sepal-like +
true +
surrounding +
sunken +
abscising +
epigynous +
compound +
parietal +
3;14 +
yellow +
coalescent +
thickening +
Madroño +
1988 +
vertical +
3;2;2;30 +
minute +
diffuse +
tuberlike +
deep +
adjacent +
developing +
0.4mm;12mm +
absent +
glabrous +
1;400 +
flattened;subcircular;deltoid +
persistent +
detachable +
twisted +
barbed +
distributed +
pliable +
longest +
aging +
absent +
conspicuous +
roughened +
depressed +
50;1500 +
decurrent +
not disarticulating +
circular +
0-1.5 +
absent +
segmented +
1;3;14 +
absent +
adventitious +
tuberlike +
Opuntia engelmannii var. flavispina +
Opuntia engelmannii +
variety +
5;50 +
segmented +
distinct +
absent +
single +
protruding +
enlarged +
branched +
terrestrial;epiphytic or epipetric +
spreading to sometimes +
aging +