Cylindropuntia acanthocarpa var. acanthocarpa

Treatment appears in FNA Volume 4. Treatment on page 117. Mentioned on page 116.
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Shrubs or small trees, with few branches, usually at acute angles. Stem segments green, 6–17.5 cm; tubercles broad, rounded, oval, 1.5–2.2 cm. Spines 15–25 per areole, brown, aging gray, not baggy sheathed; major 5–7 abaxial spines deflexed, subparallel. Flowers: inner tepals yellow-green, sometimes reddish orange tinged. Fruits densely spiny; areoles 16–26.


Phenology: Flowering spring (May).
Habitat: Mojave Desert, edges of juniper woodlands, rocky slopes
Elevation: 1100-1200 m

Discussion

Selected References

None.

Lower Taxa

None.
subterete +  and flattened +
ascending-divergent +
gray +, tan +  and deep redbrown +
cushionlike +
gray +  and tan +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
deciduous +  and persistent +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
16 +  and 26 +
elliptic +  and subcircular +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Donald J. Pinkava +
(Engelmann & J. M. Bigelow) F. M. Knuth in C. Backeberg and F. M. Knuth +
Opuntia acanthocarpa +
3 cm30 mm <br />0.03 m <br /> (3.8 cm38 mm <br />0.038 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (3 cm30 mm <br />0.03 m <br />) +
proliferating +
flattened +  and cylindric +
Ariz. +  and Utah. +
1100-1200 m +
salverform +, cup-shaped +  and rotate +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (15 cm150 mm <br />0.15 m <br />) +
spiny +  and spineless +
indehiscent +
persistent +, long +  and deciduous +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
tuberculate +
obconic +  and ellipsoid +
dry +  and fleshy +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Mojave Desert, edges of juniper woodlands, rocky slopes +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
deciduous +
flattened +  and conic +
0 cm0 mm <br />0 m <br /> (3 cm30 mm <br />0.03 m <br />) +
succulent +
tuberculate +
fluted;spheric;depressed-spheric or club-shaped +
tinged color +
sometimes covered by outgrowths of proximal portion of style base or of flower tube wall +  and open +
persistent +  and deciduous +
Flowering spring (May). +
ridgelike +  and nipple--shaped +
in C. Backeberg and F. M. Knuth, Kaktus-ABC, +
3;2;2;30 +
tuberlike +
pale-yellow +  and tan +
0.4mm;12mm +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
warped;squarish;angular +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
tight-fitting +
Illustrated +
not sheathed +
gray +  and brown +
deciduous +  and persistent +
conspicuous +
15 (?) +  and 25 (?) +
flattened +
hard +  and rigid +
decurrent +
winged +  and unsegmented +
tuberculate +  and smooth +
30 cm300 mm <br />0.3 m <br /> (50 cm500 mm <br />0.5 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
6 cm60 mm <br />0.06 m <br /> (17.5 cm175 mm <br />0.175 m <br />) +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
segmented +
woody +  and succulent +
white +  and light green +
white +  and light green +
Opuntia sect. Cylindropuntia +
adventitious +
tuberlike +
epipetric +  and epiphytic +
Cylindropuntia acanthocarpa var. acanthocarpa +
Cylindropuntia acanthocarpa +
variety +
dull +  and glossy +
yellow +  and golden +
oval +  and rounded +
1.5 cm15 mm <br />0.015 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
200 cm2,000 mm <br />2 m <br /> (400 cm4,000 mm <br />4 m <br />) +
tree +  and shrub +
terrestrial;epiphytic or epipetric +
gray-black +, yellowish +  and tan +