Grusonia kunzei

(Rose) Pinkava

J. Arizona-Nevada Acad. Sci. 32: 50. 1999.

Common names: Kunze’s club-cholla
Illustrated
Basionyms: Opuntia kunzei Rose Smithsonian Misc. Collect. 50: 505. 1908
Synonyms: Corynopuntia stanlyi var. kunzei (Rose) Backeberg Corynopuntia stanlyi var. wrightiana (E. M. Baxter) Backeberg Grusonia wrightiana Engelmann ex B. D. Jackson Opuntia stanlyi var. kunzei (Rose) L. D. Benson Opuntia stanlyi var. peeblesiana L. D. Benson Opuntia wrightiana
Treatment appears in FNA Volume 4. Treatment on page 121. Mentioned on page 95, 119, 120.

Shrubs, forming mats, to 50 cm, in series of usually 2–4 stem segments. Roots diffuse. Stem segments curved and narrowed at base, 10–15 × 2.5–4 cm; tubercles prominent, 20–30 mm, narrow, 4–6 times longer than wide, obscured by interlacing spines; areoles 5–6 mm in diam.; wool gray-white. Spines 17–27 per areole, ± uniformly distributed along stems; major 4–6 abaxial spines deflexed, tan with whitish margins, strongly flattened, longest to 4.5 cm; major 4–5 adaxial spines divergent, tan to reddish tan, angled at base, longest subterete, to 5 cm. Glochids few in adaxial portion of areole, yellow, 5–6 mm. Flowers: inner tepals yellow to pale yellow-green, to 15–20 mm; filaments white; style light green to white; stigma lobes white. Fruits sometimes proliferating, lemon yellow to yellow, 40–75 × 15–40 mm, fleshy, very spiny, glochidiate; spines (4–) 6–17 per areole, straw yellow to brown, 12–20 mm, retrorsely barbed; areoles (40–) 45–70. Seeds yellowish white, 4–5 ×3.5–4.5 mm, smooth. 2n = 44.


Phenology: Flowering spring (Apr–Jun).
Habitat: Sonoran Desert, silty, sandy, or gravelly flats and hills
Elevation: 200-600 m

Distribution

V4 234-distribution-map.gif

Ariz., Mexico (Baja California), Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.

... more about "Grusonia kunzei"
0 cm0 mm <br />0 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
tan +  and reddish tan +
0 cm0 mm <br />0 m <br /> (5 cm50 mm <br />0.05 m <br />) +
cushionlike +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
deciduous +  and persistent +
45 +  and 70 +
cushionlike +
Donald J. Pinkava +
(Rose) Pinkava +
curving +
dislodged +
cylindric-clavate +
Opuntia kunzei +
proliferating +
flattened +  and cylindric +
Kunze’s club-cholla +
Ariz. +, Mexico (Baja California) +  and Mexico (Sonora) +
200-600 m +
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 />) +
lemon yellow;yellow +
indehiscent +
persistent +, long +  and deciduous +
40mm;75mm +
proliferating +
glochidiate +
narrowly obconic +  and ellipsoid +
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
not protruding +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Sonoran Desert, silty, sandy, or gravelly flats and hills +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 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 +
sometimes covered by outgrowths of proximal portion of style base or of flower tube wall +  and open +
persistent +  and deciduous +
Flowering spring (Apr–Jun). +
ridgelike +  and nipple--shaped +
J. Arizona-Nevada Acad. Sci. +
3;2;2;30 +
adventitious +
tuberlike +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
pubescent +  and glabrous +
flattened;suborbicular +
Illustrated +
distributed +  and interlacing +
straw yellow +  and brown +
deciduous +  and persistent +
conspicuous +
6 (?) +  and 17 (?) +
terete +  and strongly flattened +
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 +
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
segmented +
woody +  and succulent +
light green +  and white +
Corynopuntia stanlyi var. kunzei +, Corynopuntia stanlyi var. wrightiana +, Grusonia wrightiana +, Opuntia stanlyi var. kunzei +, Opuntia stanlyi var. peeblesiana +  and Opuntia wrightiana +
adventitious +
tuberlike +
epipetric +  and epiphytic +
Grusonia kunzei +
Grusonia +
species +
dull +  and glossy +
obscured +  and prominent +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
conspicuous +
terrestrial;epiphytic or epipetric +
trailing +  and erect +
gray-white +