Taxon Details

Harmonia guggolziorum

Guggolz's harmonia

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Taxon Summary:

Harmonia guggolziorum, commonly known as Guggolz's harmonia, is a annual herb in the Asteraceae that is found only in California. It occurs within Chaparral (openings, and serpentinite), growing at elevations from 160 to 195 meters. Harmonia guggolziorum is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification

Scientific Name: Harmonia guggolziorum B.G. Baldwin
Common Name: Guggolz's harmonia
Family:	Asteraceae
Element Code:	PDAST650M0
USDA Plants Symbol:	HAGU
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	None
State List:	None
Global Rank:	G1
State Rank:	S1
Other Status:	SB_UCSC
CRPR Changes: added to 1B on 2003-05-14
Add Date:	2004-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: annual herb

Blooming Period: Apr-May

Elevation:
160 - 195 meters
525 - 640 feet

General Habitats:

Chaparral (openings, serpentinite)

Microhabitat Details:

Microhabitat:

Notes

Notes: Known from only two occurrences near Hopland. Potentially threatened by non-native plants, vineyard expansion, development, and road widening and construction. Not in The Jepson Manual. See Madroño 48(4):293 (2001) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	5
	Total EOs	% of EOs
EOs with Threat Listed:	2	100 %
Agriculture	2	100%
Development	2	100%
Road/trail construction/maint.	2	100%
Grazing	1	50%
Non-native plant impacts	1	50%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					2
A	B	C	D	X	U
0	0	0	0	0	2

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	2

Presence:
Presumed Extant	2
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Mendocino (MEN)

Quads: Name (Quad Code)
Yorkville (3812382)

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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CNPS Rare Plant Inventory