Taxon Report
Monolopia congdonii (Gray) B.G. BaldwinSan Joaquin woollythreads |
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Classification
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Scientific Name: |
Monolopia congdonii (Gray) B.G. Baldwin |
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Common Name: |
San Joaquin woollythreads |
| Family: | Asteraceae |
| Element Code: | PDASTA8010 |
| USDA Plants Symbol: | MOCO7 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | annual herb |
| Blooming Period: Feb-May | Feb-May |
| Elevation: | 60-800 (195-2625) |
| General Habitats: | Chenopod scrub, Valley and foothill grassland |
| Microhabitat: | |
| 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: | FE |
| Other Status: | SB_UCBG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 111 |
| Element Occurrence Ranks: | |
| Excellent (A) | 8 |
| Good (B) | 41 |
| Fair (C) | 14 |
| Poor (D) | 5 |
| None (X) | 24 |
| Unknown (U) | 19 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Fresno (FRE), Kern (KRN), Kings (KNG), San Benito (SBT), San Luis Obispo (SLO), Santa Barbara (SBA), Tulare (TUL)* | |
| Quads: Name (Quad Code) | |
| Alpaugh (3511984), Arvin (3511827), Avenal (3612012), Avenal Gap (3511978), Belridge (3511946), Blackwells Corner (3511957)*, Caliente Mtn. (3511917), California Hot Springs (3511886), Cantua Creek (3612053), Carneros Rocks (3511947)*, Coalinga (3612023)*, Coit Ranch (3612064)*, Curry Mountain (3612014), Cuyama (3411985)*, Domengine Ranch (3612033)*, Ducor (3511981), Edison (3511837), Elkhorn Hills (3511915), Famoso (3511952), Fellows (3511925), Fountain Springs (3511888), Fox Mountain (3411975), Gibbon Peak (3511887), Guijarral Hills (3612022)*, Huron (3612021)*, Johnsondale (3511885), Kettleman City (3611918)*, Kettleman Plain (3512081)*, Kreyenhagen Hills (3612013), La Cima (3612011), Levis (3612054)*, Lillis Ranch (3612044)*, Lokern (3511945), Los Viejos (3511988), Lost Hills (3511956), Lost Hills NE (3511965), Lost Hills NW (3511966)*, Monocline Ridge (3612055), New Cuyama (3411986), Oil Center (3511848)*, Oildale (3511941)*, Painted Rock (3511927), Panoche (3612057), Panorama Hills (3511926), Pixley (3511983), Posey (3511876), Rio Bravo Ranch (3511847)*, Rosedale (3511942)*, Sausalito School (3511982), Semitropic (3511955)*, Simmler (3511938), Stevens (3511932), Success Dam (3611818), Taylor Canyon (3511918), Tranquillity (3612063), Tres Pecos Farms (3612043)*, Tumey Hills (3612056), Wells Ranch (3511916), West Camp (3511977), West Elk Hills (3511935) | |
Threat List Data from the CNDDB
| Threat List Total: | 12 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 93 | 84 % | |
| Grazing | 54 | 48% |
| Agriculture | 37 | 33% |
| Mining | 26 | 23% |
| Development | 16 | 14% |
| ORV activity | 14 | 12% |
| Non-native plant impacts | 11 | 9% |
| Road/trail construction/maint. | 8 | 7% |
| Other | 7 | 6% |
| Erosion/runoff | 6 | 5% |
| Vandalism/dumping/litter | 2 | 1% |
| Disking | 2 | 1% |
| Altered flood/tidal/hydrologic regime | 1 | 0% |
Notes
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Approximately half of historical occurrences extirpated. Need quad for TUL Co. Seriously threatened by agricultural conversion, energy development, urbanization, grazing, trampling, and vehicles. Federally-listed as Lembertia congdonii |
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Threats: |
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Taxonomy: |
Citation
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 26 December 2024].