CNPS Inventory Plant Detail

Arctostaphylos mewukka ssp. truei

Common Name:	True's manzanita
Family:	Ericaceae
Synonyms:	Arctostaphylos truei
Element Code:	PDERI040Q2
Full Name:	Arctostaphylos mewukka Merriam ssp. truei (Knight) Wells
USDA PLANTS Symbol:	ARMET

Biology
Lifeform: perennial evergreen shrub Blooming Period: February - July Habitat: sometimes roadside. • Chaparral • Lower montane coniferous forest

Rarity Status
CA Rare Plant Rank: 4.2 Uncommon in California .2: Fairly endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S3.2 S3: Vulnerable. .2: Threatened. Global Rank: G4?T3 T3: Vulnerable. G4: (species) Apparently secure, considering populations outside California.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences:
Element Occurrence Ranks:

A B C D X U

Population Status:

Historic >20 yrs	Recent <=20 yrs

Presence:

Present Extant	Possibly Extirpated	Extirpated

This data is not available for all Rare Plant Rank 3 and 4 plants.

Notes
Threatened by logging and associated road usage. Intergrades with ssp. mewukka in NEV and PLA counties. See Four Seasons 3(1):19 (1969) for original description, and Four Seasons 9(2):60-63 (1992) 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: 1984-01-01 Last Update: 2010-06-22

Location

Elevation: 425 - 1390 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Butte (BUT), El Dorado (ELD), Nevada (NEV), Placer (PLA), Plumas (PLU), Yuba (YUB)

Quads: name (DWR code) USGS code

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.

Quad data is not available for all List 3 and 4 plants. For those that do contain this data, it has not been quality controlled and is potentially incomplete, inaccurate, and/or out of date. Please use caution when referencing this information. We are currently working hard to maintain this data and hope to provide accurate and up to date information in the near future.

Presumed Extant

Presumed Extirpated or Unknown

109

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 .