CNPS Inventory Plant Detail

Eriodictyon altissimum

Common Name:	Indian Knob mountainbalm
Family:	Boraginaceae
Synonyms:
Element Code:	PDHYD04010
Full Name:	Eriodictyon altissimum Wells
USDA PLANTS Symbol:	ERAL12

Biology
Lifeform: perennial evergreen shrub Blooming Period: March - June Habitat: sandstone. • Chaparral (maritime) • Cismontane woodland • Coastal scrub

Rarity Status
Rare Plant Rank: 1B.1 Rare, threatened, or endangered in California and elsewhere .1: Seriously endangered in California Federal Listing Status: FE Endangered (12/15/94) State Listing Status: CE Endangered (07/79) State Rank: S1 S1: Critically Imperiled. Global Rank: G1 G1: Critically Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Historic >20 yrs	Recent <=20 yrs
2	4

Presence:

Present Extant	Possibly Extirpated	Extirpated
6	0	0

Notes

Known from six occurrences in the Irish Hills and Indian Knob. Threatened by urbanization, energy development, and vehicles. Possibly threatened by alteration of fire regimes and non-native plants. See Madroño 16(6):184-186 (1962) 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: 2012-05-04

Location

Elevation: 80 - 270 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
San Luis Obispo (SLO)

Quads: name (DWR code) USGS code
Pismo Beach (221B) 35120B6, Morro Bay South (247D) 35120C7

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

623

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

Suggested Citation
California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society. Sacramento, CA. Accessed on .

-120.625,35.125