Opuntia pinkavae

B. D. Parfitt

Rhodora 99: 223, fig. 1. 1998.

Treatment appears in FNA Volume 4. Treatment on page 145. Mentioned on page 124.

Shrubs, low, with ascending to prostrate branches, 10–25 cm. Stem segments not disarticulating, green, flattened, narrowly to broadly obovate, 6.5–15 × 3–11 cm, low tuberculate, glabrous to papillate; areoles (4–) 7–8 per diagonal row across midstem segment, subcircular, 3–3.5 mm diam.; wool white. Spines (0–) 1–3 (–4) per areole, in distal 20–50 (–70) % of areoles, porrect to reflexed, yellow-gray to whitish gray, sometimes brown in basal 1/2, straight, sometimes curved, usually flattened, slender, longest (35–) 50–70 mm. Glochids conspicuous, in broad, dense crescent at adaxial margin of areole, redbrown, to 4 mm, sides sometimes converging into columns. Flowers: inner tepals magenta throughout, 25–35 mm; filaments yellow to red-orange to magenta; anthers yellow; style white; stigma lobes green. Fruits tan, 20–30 × 18–20 mm, maturing dry, glabrous to papillate; areoles (16–) 24–34, distal areoles bearing 1–4 short spines. Seeds tan, oval to subcircular, 6.5–8 mm, warped; girdle protruding 1.5–2 mm. 2n = 88.


Phenology: Flowering late spring (May–Jun).
Habitat: Grasslands, margins of pinyon-juniper woodlands, red, sandy or limestone loam soils
Elevation: 1400-1600 m

Discussion

Opuntia pinkavae hybridizes with O. aurea. The name O. pinkavae replaces Opuntia basilaris var. woodburyi W. Earle, which was not validly published.

Selected References

None.

Lower Taxa

None.
... more about "Opuntia pinkavae"
cushionlike +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
deciduous +  and persistent +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
24 +  and 34 +
subcircular +
0.1 cm1 mm <br />0.001 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Donald J. Pinkava +
B. D. Parfitt +
ascending +  and prostrate +
proliferating +
flattened +  and cylindric +
Ariz. +  and Utah. +
1400-1600 m +
yellow +  and red-orange +
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 />) +
spineless +  and stipitate +
burlike +  and spiny +
straight +
indehiscent +
persistent +, long +  and deciduous +
20mm;30mm +
papillate +
clavate +  and cylindric ovoid or obovoid +
fleshy +  and juicy or dry +
1.8 cm18 mm <br />0.018 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
foveolate +  and reticulate +
Grasslands, margins of pinyon-juniper woodlands, red, sandy or limestone loam soils +
oblong +  and spatulate +
2.5 cm25 mm <br />0.025 m <br /> (3.5 cm35 mm <br />0.035 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 +
open +  and simple +
sometimes covered by outgrowths of proximal portion of style base or of flower tube wall +  and open +
persistent +  and deciduous +
Flowering late spring (May–Jun). +
ridgelike +  and nipple--shaped +
3;2;2;30 +
tuberlike +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
warped;oval;subcircular +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
not sheathed +
3.5 cm35 mm <br />0.035 m <br /> (5 cm50 mm <br />0.05 m <br />) +
brown +, yellow-gray +  and whitish gray +
curved +  and straight +
deciduous +  and persistent +
porrect +  and reflexed +
conspicuous +
with hairlike bristles +  and setose +
1 (?) +  and 4 (?) +
flattened +
5 cm50 mm <br />0.05 m <br /> (7 cm70 mm <br />0.07 m <br />) +
hard +  and rigid +
decurrent +
winged +  and unsegmented +
tuberculate +  and smooth +
not disarticulating +
60 cm600 mm <br />0.6 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
6.5 cm65 mm <br />0.065 m <br /> (15 cm150 mm <br />0.15 m <br />) +
papillate +  and tuberculate +
3 cm30 mm <br />0.03 m <br /> (11 cm110 mm <br />0.11 m <br />) +
segmented +
woody +  and succulent +
adventitious +
tuberlike +
epipetric +  and epiphytic +
Opuntia pinkavae +
species +
dull +  and glossy +
yellow +  and paler +
segmented +
terrestrial;epiphytic or epipetric +
erect +  and trailing +