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Vascular Plants of California
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Opuntia basilaris var. basilaris

BEAVERTAIL


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
Species: Opuntia basilarisView Description 


Habit: Shrub. Stem: 7--40 cm, branches sprawling to ascending or erect; segments 5--21 cm, green to +- blue, generally papillate-puberulent. Spines: generally 0(8) per areole, glochids many. Flower: inner perianth +- 4 cm, pink-magenta; filaments deep magenta-red; style white or pink, stigma white. Fruit: 2--4 cm, dry in age, green and purple becoming tan, generally puberulent; areoles 24--76. Seed: 6.5--9 mm, +- spheric.

Opuntia basilaris Engelm. & J.M. Bigelow var. basilaris
NATIVE
Stem: segments 8--21 cm, 5--13 cm wide, flat, +- obovate. Spines: 0. Chromosomes: 2n=22.
Ecology: Desert to pinyon/juniper woodland; Elevation: 150--2200 m (higher n). Bioregional Distribution: s SN, Teh, SnGb, SnBr (and adjacent SCo), e PR, s SNE, D; Distribution Outside California: to Utah, Arizona, Mexico. Flowering Time: Mar--Jun
Unabridged Synonyms: Opuntia basilaris var. ramosa Parish; Opuntia whitneyana E.M. Baxter
Jepson eFlora Author: Marc Baker, Lucas C. Majure & Bruce D. Parfitt
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Botanical illustration including Opuntia basilaris var. basilarisbotanical illustration including Opuntia basilaris var. basilaris


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Citation for this treatment: Marc Baker, Lucas C. Majure & Bruce D. Parfitt 2019, Opuntia basilaris var. basilaris, in Jepson Flora Project (eds.) Jepson eFlora, Revision 7, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=62539, accessed on July 13, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on July 13, 2024.

Opuntia basilaris  
var. basilaris
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©2016 Keir Morse
Opuntia basilaris  
var. basilaris
click for image enlargement
©2012 Keir Morse
Opuntia basilaris  
var. basilaris
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©2009 Barry Breckling
Opuntia basilaris  
var. basilaris
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©2009 Thomas Stoughton
Opuntia basilaris  
var. basilaris
click for image enlargement
©2011 Neal Kramer

More photos of Opuntia basilaris var. basilaris
in CalPhotos



Geographic subdivisions for Opuntia basilaris var. basilaris:
s SN, Teh, SnGb, SnBr (and adjacent SCo), e PR, s SNE, D
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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 occurrence).






 

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 Flowering-Fruiting Monthly Counts

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).