CNPS Inventory Plant Detail

Chorizanthe pungens var. hartwegiana

Common Name:	Ben Lomond spineflower
Family:	Polygonaceae
Synonyms:
Element Code:	PDPGN040M1
Full Name:	Chorizanthe pungens Benth. var. hartwegiana Rev. & Hardham
USDA PLANTS Symbol:	CHPUH2

Biology
Lifeform: annual herb Blooming Period: April - July Habitat: • Lower montane coniferous forest (maritime ponderosa pine sandhills)

Rarity Status
CA Rare Plant Rank: 1B.1 Rare, threatened, or endangered in California and elsewhere .1: Seriously endangered in California Federal Listing Status: FE Endangered (02/04/94) State Listing Status: Not Listed State Rank: S1 S1: Critically Imperiled. Global Rank: G2T1 T1: Critically Imperiled. G2: (species) Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 18
Element Occurrence Ranks:

A B C D X U

1 6 4 0 1 6

Population Status:

Historic >20 yrs	Recent <=20 yrs
13	5

Presence:

Present Extant	Possibly Extirpated	Extirpated
17	1	0

Notes

Known only from sandhill parklands in the Santa Cruz Mtns. Threatened by sand mining, development, and non-native plants. See C. pungens in The Jepson Manual. See Annals of the Missouri Botanical Garden 21:37 (1934) for original description, and Phytologia 66(2):123-126 (1989) for taxonomic treatment, Fremontia 24(4):8-11 (1996) for taxonomic discussion, and Madroño 45(2):119-127 (1998) for ecological information.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 1994-01-01
Last Update: 2010-03-15

Location

Elevation: 90 - 610 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Santa Cruz (SCR)

Quads: name (DWR code) USGS code
Soquel (387B) 36121H8, Laurel (407C) 37121A8, Castle Rock Ridge (408A)? 37122B1, Big Basin (408B) 37122B2, Davenport (408C) 37122A2, Felton (408D) 37122A1

Notes:

Definitions of codes preceding a county and/or quad:
*		Presumed extirpated
?		Uncertain about distribution or identity
?*		Uncertain about distribution, but presumed extirpated if once present
(?)		Occurrence confirmed, but possibly extirpated

Species may be present in other areas where conditions are favorable.

Presumed Extant

Presumed Extirpated or Unknown

1626

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Game: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-01a). California Native Plant Society. Sacramento, CA. Accessed on .

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