Grusonia emoryi (Engelm.) Pinkava

Devil cholla (en)

Species

Angiosperms > Caryophyllales > Cactaceae > Grusonia

Characteristics

Shrubs, forming mats, 15-30 cm. Roots diffuse. Stem segments curved-clavate, gradually to abruptly narrowed at base, 7-19 × 2.5-5 cm; tubercles very prominent, 20-50 mm, 1-3.5 times longer than wide, not or little obscured by spines; areoles 4-6 mm in diam.; wool white to gray. Spines 12-30 per areole, mostly in apical areoles to ± uniformly distributed along stems (in northern populations), spreading, yellow, tan, or red-brown, tipped yellow, longest 3-7 cm; major 3-5 abaxial spines divergent, yellowish or red-brown, angular-flattened, sharp-edged; major (1-)3-5 adaxial spines ascending-divergent, tan or red-brown, angular-flattened to subterete. Glochids adaxial in areole, yellow to brown, 5-7 mm. Flowers: inner tepals yellow, 20-30 mm; filaments yellow to reddish; style cream; stigma lobes cream or tinged pink. Fruits yellow, cylindric to ellipsoid, 40-90 × 14-40 mm, fleshy, spineless (rarely with few very short spines) but usually densely yellow glochidiate; areoles 30-45. Seeds yellowish white to yellow, 5-6 × 3.5-4 mm, smooth. 2n = 44.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.3
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Rooting depth (meter) -
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Fruit color
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
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Hardiness (USDA) 6-11

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
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Images

Grusonia emoryi unspecified picture

Distribution

Grusonia emoryi world distribution map, present in Mexico and United States of America

Conservation status

Grusonia emoryi threat status: Least Concern

Identifiers

LSID -
WFO ID wfo-0000710638
COL ID 8S4XZ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Cactus emoryi Opuntia stanleyi Grusonia stanlyi Corynopuntia emoryi Corynopuntia stanlyi Grusonia emoryi Opuntia stanlyi Opuntia emoryi Cylindropuntia stanlyi