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Opuntia engelmannii var. engelmannii
ENGELMANN PRICKLY-PEAR


Higher Taxonomy
Family: CactaceaeView DescriptionDichotomous Key
Common Name: CACTUS FAMILY
Habit: Perennial herb, shrub, tree, generally fleshy. Stem: cylindric to spheric, or flat; surface smooth, tubercled, or ribbed (grooved); nodal areoles bearing flowers. Leaf: generally 0 or early-deciduous, flat to +- cylindric. Spines: areoles generally with central, radial spines, occasionally with glochids. Flower: generally 1 per areole, bisexual [unisexual], sessile, radial [bilateral]; perianth parts generally many [5], scale-like to petal-like; stamens many; ovary inferior [superior], style 1, stigma lobes generally several [many]. Fruit: dry to fleshy or juicy, indehiscent to variously dehiscent, spiny, scaly, or naked; tubercled or smooth. Seed: generally many, occasionally 0--few.
Genera In Family: +- 125 genera, +- 1800 species: America (especially deserts), Africa; many cultivated, some edible. Note: Spines smaller, fewer (0) in shade forms; yellow spines blacken in age. Introduced species increasingly escape cultivation. Hybridization common in some genera. Taxa of Escobaria in TJM (1993) moved to Coryphantha.
eFlora Treatment Author: Bruce D. Parfitt, except as noted
Scientific Editor: Bruce D. Parfitt, Douglas H. Goldman, Bruce G. Baldwin, Thomas J. Rosatti.
Genus: OpuntiaView DescriptionDichotomous Key


Common Name: PRICKLY-PEAR
Habit: Shrub, tree; roots fibrous [tuberous]. Stem: generally erect, < 6 [12] m; segments generally flat (+- cylindric), generally firmly attached; tubercles 0 to +- developed; ribs 0. Leaf: small, conic, fleshy, deciduous, present on young stems, ovaries. Spines: 0--many per areole, cylindric or flat, tip smooth or barbed, epidermis persistent; glochids generally many. Fruit: juicy, fleshy or dry; wall thick, bearing areoles; spiny or not. Seed: in a bony, +- white aril.
Species In Genus: +- 150 species: America; Opuntia ficus-indica cultivated for food, others for ornamental. Etymology: (Possibly from Papago name ("opun") for this food pl; or for a spiny plant of Opus, Greece) Note: Spines smaller, fewer in shade forms; yellow spines blacken in age. Spineless stems, ovaries, and fruit generally with glochids, these occasionally long, conspicuous; hybridization common. Taxa with cylindric to club-shaped stems moved to Cylindropuntia, Grusonia.
eFlora Treatment Author: Bruce D. Parfitt
Opuntia engelmannii Salm-Dyck ex Engelm. var. engelmannii
NATIVE
Habit: Shrub, mound-forming. Stem: generally < 1 m; proximal branches generally decumbent, distal spreading to ascending; segments 15--25 cm, generally obovate; gray-green, glabrous. Spines: 3--12 in all areoles, longest 4--5 cm, straight, spreading from areole, +- appressed to stem, +- flat, yellow, coated chalky-white, base often red-brown. Flower: inner perianth 4--5 cm, yellow; filaments white; style white, stigma yellow-green to green. Fruit: 4--6.5 cm, juicy, red-purple throughout; areoles 20--32. Seed: 4--6 mm. Chromosomes: 2n=66.
Ecology: Desert scrub, dry oak woodland; Elevation: 900--1500 m. Bioregional Distribution: SnJt, e PR, DMtns; Distribution Outside California: to Nevada, Texas, Mexico. Flowering Time: Mar--May Note: Hybridizes with Opuntia phaeacantha.
Unabridged Synonyms: Opuntia phaeacantha var. discata (Griffiths) L.D. Benson & Walk.
Jepson eFlora Author: Bruce D. Parfitt
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Citation for this treatment: Bruce D. Parfitt 2012, Opuntia engelmannii var. engelmannii, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=62563, accessed on October 20, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on October 20, 2019.

Opuntia engelmannii var. engelmannii
click for enlargement
© 2010 James M. Andre
Opuntia engelmannii var. engelmannii
click for enlargement
© 2010 James M. Andre
Opuntia engelmannii var. engelmannii
click for enlargement
© 2010 James M. Andre
Opuntia engelmannii var. engelmannii
click for enlargement
© 2010 James M. Andre

More photos of Opuntia engelmannii var. engelmannii in CalPhotos



Geographic subdivisions for Opuntia engelmannii var. engelmannii:
SnJt, e PR, DMtns
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.