CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record monolopia_congdonii - Fri, Dec. 3, 2021, 05:51 ET b
Monolopia congdonii
common nameSan Joaquin woollythreads
CalPhotos image
more photos
© 1986 Dean Wm. Taylor  Follow image link for photo data.
life formannual herb
CA Rare Plant Rank
List 1B.2
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S2      ranking system key
global rank
G2     G2: 6-20 occurrences OR 1,000-3,000 individuals OR 2,000-10,000 acres
Where did the "RED" code go?
CA state listingNone  
federal listingEndangered  07/19/90
where found
MAPS - Use v8 link below.

Topographic quads (58):
Little Pine Mountain (167C) 3411956, Cuyama (192A)* 3411985, New Cuyama (192B) 3411986, Fox Mountain (192D) 3411975, Arvin (214A) 3511827, Fellows (217A) 3511925, Panorama Hills (217B) 3511926, Wells Ranch (217C) 3511916, Elkhorn Hills (217D) 3511915, Painted Rock (218A) 3511927, Taylor Canyon (218C) 3511918, Caliente Mountain (218D) 3511917, Rio Bravo Ranch (239A)* 3511847, Oil Center (239B)* 3511848, Edison (239D) 3511837, Oildale (240A)* 3511941, Rosedale (240B)* 3511942, Stevens (240C) 3511932, Buttonwillow (241B) 3511944, Lokern (242A) 3511945, Belridge (242B) 3511946, Carneros Rocks (243A)* 3511947, Simmler (243C) 3511938, Lost Hills NW (265B)* 3511966, Lost Hills (265C) 3511956, Semitropic (265D)* 3511955, Blackwells Corner (266D)* 3511957, Johnsondale (285A) 3511885, California Hot Springs (285B) 3511886, Posey (285C) 3511876, Gibbon Peak (286A) 3511887, Fountain Springs (286B) 3511888, Ducor (287A) 3511981, Sausalito School (287B) 3511982, Pixley (288A) 3511983, Alpaugh (288B) 3511984, Los Viejos (290B) 3511988, Avenal Gap (290C) 3511978, West Camp (290D) 3511977, Kettleman Plain (291A)* 3512081, Garza Peak (291B)* 3512082, Success Dam (309C) 3611818, Kettleman City (313C)* 3611918, Huron (314A)* 3612021, Guijarral Hills (314B)* 3612022, Avenal (314C) 3612012, La Cima (314D) 3612011, Coalinga (315A)* 3612023, Curry Mountain (315C) 3612014, Kreyenhagen Hills (315D) 3612013, Tres Pecos Farms (338A)* 3612043, Lillis Ranch (338B)* 3612044, Domengine Ranch (338D)* 3612033, Coit Ranch (360B)* 3612064, Levis (360C)* 3612054, Chounet Ranch (361B)* 3612066, Tumey Hills (361C) 3612056, Monocline Ridge (361D) 3612055
quad data info

Counties, states, regions:
Fresno (FRE), Kings (KNG), Kern (KRN), Santa Barbara (SBA), San Benito (SBT), San Luis Obispo (SLO), Tulare (TUL)*
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chenopod scrub (ChScr)
•Valley and foothill grassland (VFGrs)(sandy)
blooming period Feb-May  
elevation range60 - 800 meters
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.
full nameMonolopia congdonii (Gray) B.G. Baldwin
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDASTA8010
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
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Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Fri, Dec. 3, 2021 from

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