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Overview

Distribution

National Distribution

Canada

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Global Range: California, Nevada, Utah, Colorado, Arizona, New Mexico, Oregon, Idaho.

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Physical Description

Type Information

Isoneotype for Opuntia ursina F.A.C. Weber in Bois
Catalog Number: US 1732560
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: ; Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): C. B. Wolf
Year Collected: 1937
Locality: San Bernardino, California, United States, North America
Elevation (m): 915 to 915
  • Isoneotype: Weber, F. A. 1897. Dict. Hort. 896.; Benson, L. D. 1982. Cacti U.S. Canada. 920.
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Ecology

Habitat

Comments: Sandy or gravelly soils of valleys, plains, low hills, or canyonsides in the desert or woodland, prairie.

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Associations

Mojave Desert flora associations

Mojave prickly pear, Opuntia erinacea, is found in California's Mojave Desert as one of the locations of occurrence of this species, . Some of the common flora associates are Shockley's goldenhead, Acamptopappus shockleyi; Desert senna, Cassia armata; Mojave dalea, Psorothamnus arborescens;and Spiny menodora, Menodora spinescens . Example cacti associates in this desert are: Silver cholla, O. echinocarpa; Beavertail cactus, O. basilaris; and Many-headed barrel cactus, Echinocactus polycephalus. The chief megaflora of this desert region is the Joshua tree, Yucca brevifolia. Soils here in the Mojave are mainly coarse sands and gravels with many outcrops that offer diverse habitat niches

  • C.Michael Hogan. 2011. Cactus. Topic ed. Arthur Dawson. Ed.-in-chief Cutler J.Cleveland. Encyclopedia of Earth. National Council for Science and the Environment. Washington DC
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Population Biology

Number of Occurrences

Note: For many non-migratory species, occurrences are roughly equivalent to populations.

Estimated Number of Occurrences: 81 to >300

Comments: Over 100 EOs (Benson 1982).

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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

Reasons: Common throughout the western United States.

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Threats

Comments: Most cacti subject to horticultural collecting.

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Names and Taxonomy

Taxonomy

Comments: Flora of North America Editorial Committee (2004), lists Opuntia ericacea in the synonymy of O. polyacantha var. ericacea and also mentions that Opuntia erinacea has been misapplied to some plants of varieties of O. polyacantha.

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