Species Details

Deinandra halliana

Hall's tarplant

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Classification

Scientific Name: Deinandra halliana (Keck) B.G. Baldwin
Common Name: Hall's tarplant
Family:	Asteraceae
Element Code:	PDAST4R0C0
USDA Plants Symbol:	DEHA7
Synonyms/Other Names: Hemizonia halliana Keck

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	None
State List:	None
Global Rank:	G3
State Rank:	S3
Other Status:	BLM_S; SB_CalBG/RSABG; SB_SBBG
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-12-09

Ecology and Life History

Lifeform: annual herb

Blooming Period: (Mar)Apr-May

Elevation:
260 - 950 meters
855 - 3115 feet

General Habitats:

Chenopod scrub
Cismontane woodland
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Alkaline (sometimes)
Clay

Notes

Notes: Threatened by grazing and non-native plants. Appears only in unusually wet years. A synonym of Hemizonia halliana in The Jepson Manual. See Madroño 3(1):12 (1935) for original description, and Novon 9:462-471 (1999) for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	10
	Total EOs	% of EOs
EOs with Threat Listed:	14	20 %
Grazing	5	7%
Other	4	5%
Development	4	5%
Foot traffic/trampling	3	4%
ORV activity	3	4%
Road/trail construction/maint.	3	4%
Agriculture	2	2%
Erosion/runoff	2	2%
Recreational use (non-ORV)	1	1%
Non-native plant impacts	1	1%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					69
A	B	C	D	X	U
24	15	4	1	0	25

Occurrence Status:
Historical >20 Years	10
Recent <=20 Years	59

Presence:
Presumed Extant	69
Possibly Extirpated	0
Presumed Extirpated	0

Location

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)

Quads: Name (Quad Code)
Cholame (3512063), Cholame Valley (3512073), Chounet Ranch (3612066), Ciervo Mtn. (3612045), Domengine Ranch (3612033), Hernandez Reservoir (3612047), Hollister (3612174), Idria (3612046), Joaquin Rocks (3612034), Lillis Ranch (3612044), Lonoak (3612038), Packwood Creek (3512051), Panoche (3612057), Santa Rita Peak (3612035), Sawtooth Ridge (3512061), Sherman Peak (3612025), Smith Mountain (3612015), Tent Hills (3512072), The Dark Hole (3512083), Tres Pinos (3612173), Tumey Hills (3612056)

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.

Regional Map

Map

Presumed Extant

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory