Cylindropuntia imbricata |
Cylindropuntia kleiniae |
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coyonostyle, tree cholla |
candle cholla, Klein cholla, Klein's pencil cactus, tasajillo |
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Habit | Trees, with short trunks, or large shrubs, widely branching, (1–)1.5–2.5(–5) m. Stem segments firmly attached, whorled or subwhorled, gray-green, cylindric to weakly clavate, 10–40 × 1.5–4 cm; tubercles very prominent, widely spaced, (1.5–)2–5 cm; areoles elliptic, 5–8× 3–4 mm; wool yellow to tan, aging gray to black. | Shrubs scraggly, openly branched, 0.5–2.5 m. Stem segments usually alternate, green, 4–20 × 0.6–1.2 cm; tubercles obvious, 1–2.5 cm; areoles subcircular to oval, 2.5–3.5 × 2–3 mm; wool yellow, aging gray to black. | ||||
Spines | (5–)8–15(–30) per areole or spineless to nearly spineless, usually at most areoles, not obscuring stems, spreading, straight or slightly curved, silver to yellow to usually ± red or tan to brown, stout, terete or sometimes flattened basally, 8–30(–40) mm subequal; sheaths silver to yellow to usually tan to dirty white, yellow tipped. |
(0–)1–2(–4) per areole, at most areoles, straight to slightly arched, commonly deflexed, not obscuring stem, yellow to gray, tipped yellow, acicular, the longest 1–3 cm. |
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Glochids | in dense adaxial tuft, pale yellow, 0.5–3 mm. |
in adaxial tuft, yellow, 0.5–2.5 mm. |
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Flowers | inner tepals dark pink to magenta to red-magenta, obovate, apiculate, 15–35 mm; filaments green basally to pink to magenta distally; anthers yellow; style light green basally or pink to red-magenta apically; stigma lobes green or cream. |
inner tepals greenish basally to reddish bronze, tinged magenta apically, spatulate-apiculate, 15–25 mm; filaments greenish basally to bronze distally; anthers yellow; style greenish bronze; stigma lobes cream. |
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Fruits | not proliferating, yellow, obovoid, 24–45 × 20–40 mm, fleshy, tuberculate, spineless; areoles 18–30; tubercles nearly equal in length or longer in proximal portion of fruit, prominent (occasionally smooth at maturity); umbilicus 7–14 mm deep. |
green becoming red, obovoid to cylindric, 13–34 × 10–20 mm, fleshy, low tuberculate to smooth, spineless; tubercles subequal; umbilicus 3–6 mm deep; areoles 16–28. |
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Seeds | yellow-tan, subcircular to angled, warped, 2.5–4 mm diam., sides smooth to slightly lumpy; girdle usually narrow, not protruding. |
tan, squarish to oval, 4–5 × 3.5–4 mm, warped, sides smooth to lumpy; girdle broad, low-ridged. |
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2n | = 44. |
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Cylindropuntia imbricata |
Cylindropuntia kleiniae |
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Phenology | Flowering late spring–early summer (May–Jun). | |||||
Habitat | Chihuahuan Desert, creosote bush-mesquite flats, limestone rocky slopes | |||||
Elevation | 800-1800 m (2600-5900 ft) | |||||
Distribution |
AZ; CO; KS; NM; OK; TX; n Mexico
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NM; TX; Mexico (Chihuahua, Coahuila, Durango, Nuevo León)
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Discussion | Varieties 2+ (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
In western Texas and northern Mexico, Cylindropuntia kleiniae forms hybrids with C. leptocaulis (= C. ×antoniae P. V. Heath) that have varying degrees of morphologic intermediacy and chromosome number of 2n = 33. In northern Mexico, C. kleiniae hybridizes with C. imbricata var. imbricata. Cylindropuntia kleiniae itself may be of hybrid origin. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 4, p. 112. | FNA vol. 4, p. 107. | ||||
Parent taxa | Cactaceae > subfam. Opuntioideae > Cylindropuntia | Cactaceae > subfam. Opuntioideae > Cylindropuntia | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | family cactaceae Cereus imbricatusH, Opuntia imbricata | Opuntia kleiniae, Opuntia wrightii | ||||
Name authority | (Haworth) F. M. Knuth: in C. Backeberg and F. M. Knuth, Kaktus-ABC, 125. (1935) | (de Candolle) F. M. Knuth: in C. Backeberg and F. M. Knuth, Kactus-ABC, 123. (1935) | ||||
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