Opuntia ×columbiana

Griffiths

Bull. Torrey Bot. Club 43: 523. 1916.

Synonyms: Opuntia erinacea var. columbiana (Griffiths) L. D. Benson
Treatment appears in FNA Volume 4. Treatment on page 146. Mentioned on page 125.

Shrubs, low, forming mats, 10–30 cm. Stem segments easily detached to firmly attached, green, flattened, narrowly to broadly obovate, 3.5–9 × 2.5–5 cm, low tuberculate, glabrous; areoles 4–6 (–7) per diagonal row across midstem segment, oval, 3.5 × 2.5 mm; wool white. Spines in most areoles, straight, acicular, terete; major spines 0–1 per areole, reflexed to porrect (rarely ascending), gray-white to brown, (15–) 25–40 (–60) mm; intermediate spines 0–3, reflexed, 12–20 mm; minor spines 2–4, reflexed, yellow-gray, 3–6 mm. Glochids loosely packed, in small tuft or crescent at adaxial margin of areole, yellowish, inconspicuous, to 4 mm. Flowers: inner tepals yellow throughout, 30–45 mm; filaments white to red; anthers yellow; style white; stigma lobes green. Fruits rarely set, top-shaped to barrel-shaped, 15–20 × 15 mm, glabrous; areoles 10–15, most bearing 3–12 spines or distal spines bearing 1–3 spines. Seeds tan, large, 5–7 mm; girdle protruding 1–1.5 mm. 2n = 66.


Phenology: Flowering summer (late Jun-early Jul).
Habitat: Dark basaltic cliffs and derived sands
Elevation: 100-800 m

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Opuntia ×columbiana"
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 />) +
deciduous +  and persistent +
3.5 cm35 mm <br />0.035 m <br /> (?) +
10 +  and 15 +
2.5 cm25 mm <br />0.025 m <br /> (?) +
Donald J. Pinkava +
Griffiths +
proliferating +
flattened +  and cylindric +
B.C. +, Idaho +, Oreg. +  and Wash. +
100-800 m +
white +  and red +
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 +
15mm;20mm +
proliferating +
tuberculate +  and smooth +
top-shaped +  and barrel-shaped +
fleshy +  and juicy or dry +
15 cm150 mm <br />0.15 m <br /> (?) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
inconspicuous +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
foveolate +  and reticulate +
Dark basaltic cliffs and derived sands +
oblong +  and spatulate +
3 cm30 mm <br />0.03 m <br /> (4.5 cm45 mm <br />0.045 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 +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
open +  and simple +
sometimes covered by outgrowths of proximal portion of style base or of flower tube wall +  and open +
persistent +  and deciduous +
Flowering summer (late Jun-early Jul). +
ridgelike +  and nipple--shaped +
Bull. Torrey Bot. Club +
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;generally circular;reniform flattened +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
not sheathed +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
gray-white +  and brown +
straight +
deciduous +  and persistent +
reflexed +  and porrect +
conspicuous +
with hairlike bristles +  and setose +
1 (?) +  and 3 (?) +
terete +  and acicular +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
hard +  and rigid +
decurrent +
winged +  and unsegmented +
tuberculate +  and smooth +
60 cm600 mm <br />0.6 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (9 cm90 mm <br />0.09 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (5 cm50 mm <br />0.05 m <br />) +
segmented +
woody +  and succulent +
Opuntia erinacea var. columbiana +
adventitious +
tuberlike +
epipetric +  and epiphytic +
Opuntia ×columbiana +
species +
dull +  and glossy +
yellow +  and paler +
segmented +
terrestrial;epiphytic or epipetric +
erect +  and trailing +