Taxon Report
Dudleya viscida (Wats.) Moransticky dudleya |
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Taxon Summary
Dudleya viscida, commonly known as sticky dudleya, is a perennial herb in the Crassulaceae that is found only in California. It occurs within Chaparral, Cismontane woodland, Coastal bluff scrub, and Coastal scrub, growing at elevations from 10 to 550 meters. Dudleya viscida is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Dudleya viscida (Wats.) Moran |
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Common Name: |
sticky dudleya |
| Family: | Crassulaceae |
| Element Code: | PDCRA040T0 |
| USDA Plants Symbol: | DUVI2 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: May-Jun | May-Jun |
| Elevation: | 10-550 (35-1805) |
| General Habitats: | Chaparral, Cismontane woodland, Coastal bluff scrub, Coastal scrub |
| Microhabitat: | Rocky |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G2 |
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State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_CRES; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 31 |
| Element Occurrence Ranks: | |
| Excellent (A) | 7 |
| Good (B) | 1 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 23 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Orange (ORA), Riverside (RIV), San Diego (SDG) | |
| Quads: Name (Quad Code) | |
| Alberhill (3311764), Canada Gobernadora (3311755), Del Mar (3211782), Fallbrook (3311743), La Jolla (3211772), Las Pulgas Canyon (3311734), Margarita Peak (3311744), Oceanside (3311724), Point Loma (3211762), Rancho Santa Fe (3311712), San Luis Rey (3311723), Sitton Peak (3311754), Temecula (3311742) | |
Threat List Data from the CNDDB
| Threat List Total: | 8 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 7 | 23 % | |
| Development | 2 | 6% |
| Road/trail construction/maint. | 2 | 6% |
| Biocides | 1 | 3% |
| Dam/Inundation | 1 | 3% |
| Military operations | 1 | 3% |
| Non-native plant impacts | 1 | 3% |
| Other | 1 | 3% |
| Recreational use (non-ORV) | 1 | 3% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 5 March 2025].