CNPS Inventory Plant Detail

Dieteria canescens var. ziegleri

Common Name:	Ziegler's aster
Family:	Asteraceae
Synonyms:	Machaeranthera canescens var. ziegleri
Element Code:	PDAST640B2
Full Name:	Dieteria canescens (Pursh) Nuttall var. ziegleri (Munz) D.R. Morgan & R.L. Hartman
USDA PLANTS Symbol:

Biology
Lifeform: perennial herb Blooming Period: July - October Habitat: • Lower montane coniferous forest • Upper montane coniferous forest

Rarity Status
CA Rare Plant Rank: 1B.2 Rare, threatened, or endangered in California and elsewhere .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S1 S1: Critically Imperiled. Global Rank: G5T1 T1: Critically Imperiled. G5: (species) Secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Historic >20 yrs	Recent <=20 yrs
2	0

Presence:

Present Extant	Possibly Extirpated	Extirpated
2	0	0

Notes
Known only from the Santa Rosa Mtns. Threatened by grazing, road maintenance, trampling, and vehicles. See Aliso 7:65-66 (1969) for original description and SIDA 20(4): 1396 (2003) for revised nomenclature. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 1980-01-01 Last Update: 2010-03-15

Location

Elevation: 1372 - 2499 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Riverside (RIV)

Quads: name (DWR code) USGS code
Toro Peak (065C) 33116E4, Butterfly Peak (066D) 33116E5

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

641

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 .

-116.375,33.5