Species Details
Polyctenium williamsiae
Williams' combleaf
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Scientific Name: Polyctenium williamsiae Rollins |
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Common Name: Williams' combleaf |
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Family: | Brassicaceae | |
Element Code: | PDBRA23030 | |
USDA Plants Symbol: | POWI | |
Synonyms/Other Names: |
CA Rare Plant Rank: | 1B.2 |
Fed List: | None |
State List: | None |
Global Rank: | G2Q |
State Rank: |
S1 |
Other Status: | BLM_S; USFS_S |
CRPR Changes: removed from 1B.2 on 2012-02-08 |
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Add Date: | 2001-01-01 |
Date Edited: | 2022-06-08 |
Lifeform: perennial herb | ||
Blooming Period: Mar-Jul | ||
Elevation:
1347 - 2700 meters 4420 - 8860 feet |
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General Habitat:
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General Micro Habitat: | ||
Micro Habitat:
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Notes: Threatened by grazing and trampling. Possibly threatened by recreational activities. State-listed as Critically Endangered in NV. A synonym of P. fremontii in TJM 2. See Journal of the Arnold Arboretum 64:508 (1983) for original description, and Intermountain Flora 2B:416-419 (2005) for taxonomic treatment. |
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Threats: |
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Taxonomy: |
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Other: |
Total Occurrences: | 6 | ||||
Element Occurrence Ranks: | |||||
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A | B | C | D | X | U |
0 | 3 | 0 | 0 | 0 | 3 |
Occurrence Status: | |||||
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Historical >20 Years | 1 | ||||
Recent <=20 Years | 5 |
Presence: | |||||
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Presumed Extant | 6 | ||||
Possibly Extirpated | 0 | ||||
Presumed Extirpated | 0 |
California Endemic: | |||||||||||||
California Island: | |||||||||||||
States: Name (Code) California (CA), Nevada (NV), Oregon (OR) |
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California Counties and Islands: Name (Code) Lassen (LAS), Mono (MNO) |
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Quads: Name (Quad Code) Anderson Mtn. (4012085), Aurora (3811838), Cedar Hill (3811827), Dome Hill (3811931), Shaffer Mtn. (4012043), West of Huntoon Spring (3811816) |
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Notes:
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CNPS Status Review: | CRPR List Deletion on 2012-02-08 |