CNPS Inventory Plant Detail

Malacothamnus aboriginum

Common Name:	Indian Valley bush-mallow
Family:	Malvaceae
Synonyms:
Element Code:	PDMAL0Q020
Full Name:	Malacothamnus aboriginum (Rob.) Greene
USDA PLANTS Symbol:	MAAB2

Biology
Lifeform: perennial deciduous shrub Blooming Period: April - October Habitat: Rocky, granitic, often in burned areas. • Chaparral • Cismontane woodland

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: S2 S2: Imperiled. Global Rank: G2 G2: Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Total # of Known Element Occurrences: 40
Element Occurrence Ranks:

A B C D X U

0 1 2 0 0 37

Population Status:

Historic >20 yrs	Recent <=20 yrs
31	9

Presence:

Present Extant	Possibly Extirpated	Extirpated
40	0	0

Notes

Appears in abundance after fires. Threatened by grazing, vehicles, road maintenance. M. densiflorus specimens from SDG Co. have been confused with this species. See Synoptical Flora of North America 1(1):311 (1897) for original description.
To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
Date Added: 1974-01-01
Last Update: 2011-04-01

Location

Elevation: 150 - 1700 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Fresno (FRE), Kings (KNG), Monterey (MNT), San Benito (SBT), Santa Clara (SCL), San Mateo (SMT)

Quads: name (DWR code) USGS code
The Dark Hole (292A) 35120H3, Stockdale Mountain (293A) 35120H5, Valleton (293B) 35120H6, Wunpost (294A) 35120H7, Bryson (295D) 35121G1, Alcalde Hills (315B) 36120B4, Curry Mountain (315C) 36120A4, Priest Valley (316B) 36120B6, Smith Mountain (316D) 36120A5, Joaquin Rocks (338C) 36120C4, Ciervo Mtn. (339A) 36120D5, San Benito Mtn. (339C) 36120C6, Santa Rita Peak (339D) 36120C5, Rock Spring Peak (340B) 36120D8, Lonoak (340C) 36120C8, Hepsedam Peak (340D) 36120C7, Topo Valley (341A) 36121D1, North Chalone Peak (341B) 36121D2, Pinalito Canyon (341D) 36121C1, Soledad (342A) 36121D3, Llanada (362C) 36120E8, Panoche Pass (363A) 36121F1, Cherry Peak (363B) 36121F2, Bickmore Canyon (363C) 36121E2, San Benito (363D) 36121E1, Paicines (364A)? 36121F3, Gonzales (364C) 36121E4, Hollister (385C) 36121G4, Tres Pinos (385D) 36121G3, Santa Teresa Hills (407A) 37121B7, Cupertino (428D) 37122C1, Montara Mountain (448C) 37122E4

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

1059

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 .

-121.0,36.375