CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record layia_heterotricha - Sat, Nov. 27, 2021 00:49 ET c
Layia heterotricha
common namepale-yellow layia
CalPhotos image
more photos
Beatrice F. Howitt © 1999 California Academy of Sciences  Follow image link for photo data.
life formannual herb
CA Rare Plant Rank
List 1B.1
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.1: Seriously 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 listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (69):
Matilija (141A) 3411943, Goleta (143A) 3411947, Lockwood Valley (165A) 3411961, San Guillermo (165B) 3411962, Reyes Peak (166A) 3411963, Rancho Nuevo Creek (166B) 3411964, Wheeler Springs (166D)* 3411953, Lake Cachuma (168C) 3411958, Lompoc (170B) 3412064, Surf (171A) 3412065, Pleito Hills (190A) 3411981, Sawmill Mountain (190C)* 3411972, Cuddy Valley (190D) 3411971, Ballinger Canyon (191B) 3411984, Cuyama Peak (191C) 3411974, Apache Canyon (191D) 3411973, Salisbury Potrero (192C) 3411976, Fox Mountain (192D) 3411975, Bates Canyon (193B) 3411988, Casmalia (196D) 3412075, Mojave (211C)* 3511812, Tehachapi NE (212A)* 3511823, Tehachapi North (212B)* 3511824, Tehachapi South (212C) 3511814, Monolith (212D)* 3511813, Panorama Hills (217B) 3511926, Wells Ranch (217C) 3511916, Elkhorn Hills (217D)* 3511915, Chimineas Ranch (218B) 3511928, Taylor Canyon (218C) 3511918, Caliente Mountain (218D) 3511917, Reward (242C) 3511936, Carneros Rocks (243A)* 3511947, Las Yeguas Ranch (243B)* 3511948, Simmler (243C) 3511938, Mckittrick Summit (243D) 3511937, La Panza (244C)* 3512032, California Valley (244D)* 3512031, Camatta Ranch (245A) 3512043, Wilson Corner (245B) 3512044, Freeman Junction (258C) 3511758, Orchard Peak (267B)* 3512062, Cholame (268A) 3512063, Garza Peak (291B)* 3512082, Tent Hills (291C) 3512072, The Dark Hole (292A) 3512083, Cholame Valley (292D) 3512073, Hames Valley (294B)* 3512088, Tierra Redonda Mountain (294C)* 3512078, Burnett Peak (295C) 3512172, Bryson (295D) 3512171, Coalinga (315A)* 3612023, Curry Mountain (315C)* 3612014, Smith Mountain (316D) 3612015, Monarch Peak (317A) 3612027, Nattrass Valley (317B) 3612028, San Lucas (318A)(*?) 3612121, Thompson Canyon (318B)* 3612122, Bear Canyon (319D) 3612113, Lillis Ranch (338B) 3612044, Joaquin Rocks (338C) 3612034, Domengine Ranch (338D) 3612033, Ciervo Mountain (339A) 3612045, Santa Rita Peak (339D) 3612035, Rock Spring Peak (340B) 3612048, Lonoak (340C)* 3612038, Greenfield (341C) 3612132, Tumey Hills (361C) 3612056, Panoche (362D)(*?) 3612057
quad data info

Counties, states, regions:
Fresno (FRE), Kings (KNG)*, Kern (KRN)*, Los Angeles (LAX), Monterey (MNT), Santa Barbara (SBA), San Benito (SBT)(*?), San Luis Obispo (SLO)*, Ventura (VEN)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Cismontane woodland (CmWld)
•Coastal scrub (CoScr)
•Pinyon and juniper woodland (PJWld)
•Valley and foothill grassland (VFGrs)/alkaline or clay
blooming period Mar-Jun  
elevation range300 - 1705 meters
Threatened by agricultural conversion and previous construction of San Antonio Reservoir, grazing, non-native plants, and vehicles. Potentially threatened by road maintenance and wind energy development.
full nameLayia heterotricha (DC.) H. & A.
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  LAHE Element Code  PDAST5N070
CalFlora species this taxon    CalFlora genus related taxa
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 Sat, Nov. 27, 2021 from

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