Overview

Distribution

National Distribution

Mexico

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Global Range: San Diego County, California and northwestern Baja California, Mexico.

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Physical Description

Type Information

Holotype for Stylophyllum orcuttii Rose
Catalog Number: US 411182
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. R. Orcutt
Locality: Initial moument near San Diego., San Diego, California, United States, North America
  • Holotype: Rose, J. N. 1903. Bull. New York Bot. Gard. 3: 36.
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Type fragment for Stylophyllum parishii Britton
Catalog Number: US 397534
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): S. B. Parish & W. F. Parish
Year Collected: 1880
Locality: Pala., San Diego, California, United States, North America
  • Type fragment: Britton, N. L. 1903. Bull. New York Bot. Gard. 3: 37.
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Ecology

Habitat

Comments: Coastal scrub, chaparral, coastal bluff scrub, rocky or gravelly soil.

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Conservation

Conservation Status

National NatureServe Conservation Status

Mexico

Rounded National Status Rank: N1 - Critically Imperiled

United States

Rounded National Status Rank: N1 - Critically Imperiled

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NatureServe Conservation Status

Rounded Global Status Rank: T2 - Imperiled

Reasons: Dudleya attenuata ssp. orcutti is known from San Diego County, California and northwestern Baja California, Mexico. Trampling is a threat to this taxon.

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Threats

Comments: Threatened by trampling at Border Field State Park.

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Names and Taxonomy

Taxonomy

Comments: According to the treatment in FNA (2009, vol. 8), plants previously distinguished as D. attenuata ssp. orcuttii based on petal color have since been found to have some individuals with flowers matching ssp. attenuata (a subspecies which is abundant in Mexico) and are now treated as indistinct.

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