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Vascular Plants of California
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Opuntia ×charlestonensis


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.
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.
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: Marc Baker, Lucas C. Majure & Bruce D. Parfitt
Opuntia ×charlestonensis Clokey
NATIVE
Habit: Shrub. Stem: 0.2--0.5 m; branches decumbent to +- spreading; segments 10--25 cm, oval to obovate; gray- to yellow-green, glabrous. Spines: 4--6 per areole on generally >70% of segment, longest 4--5 cm, generally flat, spreading, often twisted, bone-white, red-brown near base; smaller .05--1.5 cm, reflexed to spreading, bone-white throughout. Flower: inner perianth 4--6 cm, clear yellow, generally pale to dark red-purple at base, perianth turning orange-red throughout with age; filaments pale yellow; style pale yellow, stigma pale yellow. Fruit: 3--3.5 cm, juicy, red-purple; interior generally green; areoles 15--32. Seed: 4--5 mm. Chromosomes: 2n=55.
Ecology: Chaparral, Joshua-tree woodland, pinyon/juniper woodland; Elevation: 45--2220 m. Bioregional Distribution: DMtns; Distribution Outside California: southern Nevada, northernmost Arizona. Flowering Time: May--Jun Note: A putative hybrid between O. phaeacantha and O. polyacantha var. erinacea; reproduces asexually by seed. Common near type locality in Clark Co., Nevada; rarely collected elsewhere.
Jepson eFlora Author: Marc Baker, Lucas C. Majure & Bruce D. Parfitt
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Opuntia basilaris var. treleasei
Next taxon: Opuntia chlorotica

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Citation for this treatment: Marc Baker, Lucas C. Majure & Bruce D. Parfitt 2019, Opuntia ×charlestonensis, in Jepson Flora Project (eds.) Jepson eFlora, Revision 7, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=108600, accessed on April 16, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 16, 2024.

No expert verified images found for Opuntia ×charlestonensis.



Geographic subdivisions for Opuntia ×charlestonensis:
DMtns
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).





 

Data provided by the participants of the  Consortium of California Herbaria.
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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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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 (fruiting time in some monocot genera).