Species Details

Harmonia stebbinsii

Stebbins' harmonia

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Classification

Scientific Name: Harmonia stebbinsii (T.W. Nelson & J.P. Nelson) B.G. Baldwin
Common Name: Stebbins' harmonia
Family:	Asteraceae
Element Code:	PDAST650K0
USDA Plants Symbol:	HAST10
Synonyms/Other Names: Madia stebbinsii T.W. Nelson & J.P. Nelson

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:	BLM_S; SB_UCSC; USFS_S
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: annual herb

Blooming Period: May-Jun

Elevation:
400 - 1580 meters
1310 - 5185 feet

General Habitats:

Chaparral
Lower montane coniferous forest

Microhabitat Details:

Microhabitat:

Serpentine

Notes

Notes:
Threats: Possibly threatened by road maintenance.
Taxonomy: A synonym of Madia stebbinsii in The Jepson Manual.

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	5
	Total EOs	% of EOs
EOs with Threat Listed:	14	67 %
Road/trail construction/maint.	12	57%
Logging	8	38%
Mining	1	4%
Non-native plant impacts	1	4%
Improper burning regime	1	4%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					21
A	B	C	D	X	U
2	11	1	1	0	6

Occurrence Status:
Historical >20 Years	16
Recent <=20 Years	5

Presence:
Presumed Extant	21
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Lake (LAK), Shasta (SHA), Tehama (TEH), Trinity (TRI)

Quads: Name (Quad Code)
Beegum (4012237), Fouts Springs (3912236), Hall Ridge (3912276), Platina (4012238), Pony Buck Peak (4012331), Riley Ridge (3912286), Smoky Creek (4012332), Tomhead Mtn. (4012227), Wildwood (4012341)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

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Selected References

Original Description:	Brittonia 32(3):323 (1980)
Revised Nomenclature:	Novon 9:462-471 (1999)
Species Account:	Harmonia stebbinsii profile for potential Species of Conservation Concern evaluation (2022)
Other:	USFS Potential Species of Conservation Concern Profile