Taxon Details
Dudleya cymosa ssp. marcescens
marcescent dudleya
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Taxon Summary:
Dudleya cymosa ssp. marcescens, commonly known as marcescent dudleya, is a perennial herb in the Crassulaceae that is found only in California. It occurs within Chaparral, growing at elevations from 150 to 520 meters. Dudleya cymosa ssp. marcescens is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.|
Scientific Name: Dudleya cymosa (Lem.) Britt. & Rose ssp. marcescens Moran |
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Common Name: marcescent dudleya |
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| Family: | Crassulaceae | |
| Element Code: | PDCRA040A3 | |
| USDA Plants Symbol: | DUCYM | |
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Synonyms/Other Names: |
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| Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
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| CA Rare Plant Rank: | 1B.2 |
| Fed List: | FT (1997-01-29) |
| State List: | CR (1978-11-01) |
| Global Rank: | G5T2 |
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State Rank: |
S2 |
| Other Status: | SB_CalBG/RSABG; SB_SBBG |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2022-12-06 |
| Lifeform: perennial herb | ||||||||||||||
Blooming Period: Apr-Jul
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Elevation:
150 - 520 meters 490 - 1705 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
Microhabitat:
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| Threat List Total: | 7 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 8 | 57 % |
| THREAT LIST: | ||
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| Recreational use (non-ORV) | 5 | 35% |
| Foot traffic/trampling | 4 | 28% |
| Non-native plant impacts | 2 | 14% |
| Development | 2 | 14% |
| Road/trail construction/maint. | 1 | 7% |
| Over-collecting/poaching | 1 | 7% |
| Improper burning regime | 1 | 7% |
| Total Occurrences: | 14 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 1 | 7 | 1 | 0 | 0 | 5 |
| Occurrence Status: | |||||
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| Historical >20 Years | 5 | ||||
| Recent <=20 Years | 9 | ||||
| Presence: | |||||
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| Presumed Extant | 14 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Los Angeles (LAX), Ventura (VEN) |
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Quads: Name (Quad Code) Malibu Beach (3411816), Newbury Park (3411828), Point Dume (3411817), Triunfo Pass (3411818) |
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Notes:
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Presumed Extant
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