Species Details

Layia heterotricha

pale-yellow layia

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Photo by © 2003 Christopher L. Christie  max-height:128px; max-width:145px;
© 2003 Christopher L. Christie
Photo by © 2015 Keir Morse  max-height:128px; max-width:145px;
© 2015 Keir Morse
Photo by © 2015 Keir Morse  max-height:128px; max-width:145px;
© 2015 Keir Morse
Scientific Name:
Layia heterotricha (DC.) H. & A.
Common Name:
pale-yellow layia
Family: Asteraceae
Element Code: PDAST5N070
USDA Plants Symbol: LAHE
Synonyms/Other Names:
CA Rare Plant Rank: 1B.1
Fed List: None
State List: None
Global Rank: G2
State Rank:
S2
Other Status: BLM_S; SB_CalBG/RSABG; SB_SBBG; USFS_S
CRPR Changes:
Add Date: 1994-01-01
Date Edited: 2022-01-05
Lifeform: annual herb
Blooming Period: Mar-Jun
Elevation:
300 - 1705 meters
985 - 5595 feet
General Habitat:
  • Cismontane woodland
  • Coastal scrub
  • Pinyon and juniper woodland
  • Valley and foothill grassland
General Micro Habitat:
Micro Habitat:
  • Alkaline (sometimes)
  • Clay (sometimes)
Notes:
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.
Threats:
Taxonomy:
Other:
Total Occurrences: 125
Element Occurrence Ranks:
A B C D X U
21 12 1 8 1 82
Occurrence Status:
Historical >20 Years 52
Recent <=20 Years 73
Presence:
Presumed Extant 124
Possibly Extirpated 0
Presumed Extirpated 1
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Fresno (FRE), Kern (KRN)*, Kings (KNG)*, Monterey (MNT), San Benito (SBT)(?), San Luis Obispo (SLO)*, Santa Barbara (SBA), Ventura (VEN)
Quads: Name (Quad Code)
Apache Canyon (3411973), Ballinger Canyon (3411984), Bates Canyon (3411988), Bear Canyon (3612113), Bryson (3512171), Burnett Peak (3512172), Caliente Mtn. (3511917), California Valley (3512031)*, Camatta Ranch (3512043), Carneros Rocks (3511947)*, Casmalia (3412075), Chimineas Ranch (3511928), Cholame (3512063), Cholame Valley (3512073), Ciervo Mtn. (3612045), Coalinga (3612023)*, Cuddy Valley (3411971), Curry Mountain (3612014)*, Cuyama (3411985), Cuyama Peak (3411974), Domengine Ranch (3612033), Elkhorn Hills (3511915)*, Fox Mountain (3411975), Freeman Junction (3511758), Garza Peak (3512082)*, Goleta (3411947), Greenfield (3612132), Hames Valley (3512088)*, Joaquin Rocks (3612034), La Panza (3512032)*, Lake Cachuma (3411958), Las Yeguas Ranch (3511948)*, Lillis Ranch (3612044), Lockwood Valley (3411961), Lompoc (3412064), Matilija (3411943), McKittrick Summit (3511937), Mercey Hot Springs (3612067), Mojave (3511812)*, Monarch Peak (3612027), Monolith (3511813)*, Nattrass Valley (3612028), North Chalone Peak (3612142), Orchard Peak (3512062)*, Panoche (3612057)(?), Panorama Hills (3511926), Pleito Hills (3411981), Rancho Nuevo Creek (3411964), Reward (3511936), Reyes Peak (3411963), Rock Spring Peak (3612048), Salisbury Potrero (3411976), San Guillermo (3411962), Santa Rita Peak (3612035), Sawmill Mountain (3411972)*, Simmler (3511938), Smith Mountain (3612015), Surf (3412065), Taylor Canyon (3511918), Tehachapi NE (3511823)*, Tehachapi North (3511824), Tehachapi South (3511814), Tent Hills (3512072), The Dark Hole (3512083), Thompson Canyon (3612122)*, Tierra Redonda Mountain (3512078)*, Tumey Hills (3612056), Wells Ranch (3511916), Wheeler Springs (3411953)*, Wilson Corner (3512044)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Map

Presumed Extant
Counties   Quads