Taxon Details
Monolopia congdonii
San Joaquin woollythreads
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Taxon Summary:
Monolopia congdonii, commonly known as San Joaquin woollythreads, is a annual herb in the Asteraceae that is found only in California. It occurs within Chenopod scrub, and Valley and foothill grassland (sandy), growing at elevations from 60 to 800 meters. Monolopia congdonii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.|
Scientific Name: Monolopia congdonii (Gray) B.G. Baldwin |
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Common Name: San Joaquin woollythreads |
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| Family: | Asteraceae | |
| Element Code: | PDASTA8010 | |
| USDA Plants Symbol: | MOCO7 | |
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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: | FE (1990-07-19) |
| State List: | None |
| Global Rank: | G2 |
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State Rank: |
S2 |
| Other Status: | SB_UCBG |
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CRPR Changes: |
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| Add Date: | 1988-01-01 |
| Date Edited: | 2021-05-26 |
| Lifeform: annual herb | ||||||||||||||
Blooming Period: Feb-May
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Elevation:
60 - 800 meters 195 - 2625 feet |
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General Habitats:
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| Microhabitat Details: | ||||||||||||||
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Microhabitat:
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Notes: 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; see this name in The Jepson Manual. See Proceedings of the American Academy of Arts and Sciences 19:20 (1883) for original description, and Novon 9:460-461 (1999) for revised nomenclature. |
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Threats: |
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Taxonomy: |
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| Threat List Total: | 12 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 93 | 84 % |
| THREAT LIST: | ||
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| 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% |
| Total Occurrences: | 111 | ||||
| Element Occurrence Ranks: | |||||
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| A | B | C | D | X | U |
| 8 | 41 | 14 | 5 | 24 | 19 |
| Occurrence Status: | |||||
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| Historical >20 Years | 65 | ||||
| Recent <=20 Years | 46 | ||||
| Presence: | |||||
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| Presumed Extant | 87 | ||||
| Possibly Extirpated | 24 | ||||
| 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) Fresno (FRE), Kern (KRN), Kings (KNG), San Benito (SBT), San Luis Obispo (SLO), Santa Barbara (SBA), Tulare (TUL)* |
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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) |
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Notes:
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Presumed Extant
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