Taxon Report
Stenotus lanuginosus (Gray) Greene var. lanuginosuswoolly stenotus |
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Taxon Summary
Stenotus lanuginosus var. lanuginosus, commonly known as woolly stenotus, is a perennial herb in the Asteraceae that is found in California and elsewhere. It occurs within Great Basin scrub, Meadows and seeps, and Pinyon and juniper woodland, growing at elevations from 1500 to 1930 meters. Stenotus lanuginosus var. lanuginosus is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Stenotus lanuginosus (Gray) Greene var. lanuginosus |
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Common Name: |
woolly stenotus |
| Family: | Asteraceae |
| Element Code: | PDASTCX012 |
| USDA Plants Symbol: | |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: May-Jul | May-Jul |
| Elevation: | 1500-1930 (4920-6330) |
| General Habitats: | Great Basin scrub, Meadows and seeps, Pinyon and juniper woodland |
| Microhabitat: | Gravelly, Loam |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 2B.2 |
| Global Rank: | G5T5 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 65 |
| Element Occurrence Ranks: | |
| Excellent (A) | 13 |
| Good (B) | 43 |
| Fair (C) | 5 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 4 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Lassen (LAS), Modoc (MOD) | |
| Quads: Name (Quad Code) | |
| Ash Valley (4112016), Beaver Mtn. (4112086), Boot Lake (4112012), Bullard Lake (4012078), Champs Flat (4012068), Harvey Mtn. (4012161), Lane Reservoir (4112017), Madeline (4112014), Poison Lake (4012162), Said Valley (4012087), Sheepshead (4012077), Silva Flat Reservoir (4012088), Spalding Tract (4012067), Swains Hole (4012163), Weed Valley (4112087) | |
Threat List Data from the CNDDB
| Threat List Total: | 8 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 41 | 63 % | |
| Grazing | 31 | 47% |
| Logging | 15 | 23% |
| Improper burning regime | 6 | 9% |
| Mining | 4 | 6% |
| Foot traffic/trampling | 3 | 4% |
| Altered flood/tidal/hydrologic regime | 1 | 1% |
| Non-native plant impacts | 1 | 1% |
| ORV activity | 1 | 1% |
Notes
| Threatened by logging, grazing, trampling, vehicles, fire, and non-native plants. See Botany of the Wilkes Exploratory Expedition 17:347 (1874) for original description, and Carnegie Institution of Washington Publication 389:171 (1928) for additional information. |
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Threats: |
| Threatened by logging, grazing, trampling, vehicles, fire, and non-native plants. |
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Taxonomy: |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 12 March 2025].