CNPS Inventory Plant Detail

Harmonia hallii

Common Name:	Hall's harmonia
Family:	Asteraceae
Synonyms:	Madia hallii
Element Code:	PDAST650A0
Full Name:	Harmonia hallii (Keck) B.G. Baldwin
USDA PLANTS Symbol:	HAHA11

Biology
Lifeform: annual herb Blooming Period: April - June Habitat: • Chaparral (serpentinite)

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: 19
Element Occurrence Ranks:

A B C D X U

0 5 1 0 0 13

Population Status:

Historic >20 yrs	Recent <=20 yrs
11	8

Presence:

Present Extant	Possibly Extirpated	Extirpated
19	0	0

Notes
Threatened by mining. A synonym of Madia hallii in The Jepson Manual. See Madroño 3(1):5 (1935) for original description, and Novon 9:462-471 (1999) 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: 2010-09-17

Location

Elevation: 500 - 975 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Colusa (COL), Lake (LAK), Napa (NAP), Yolo (YOL)

Quads: name (DWR code) USGS code
Aetna Springs (516B) 38122F4, Detert Reservoir (517A) 38122F5, Wilson Valley (532B) 38122H4, Jericho Valley (532C) 38122G4, Knoxville (532D) 38122G3, Lower Lake (533A) 38122H5, Middletown (533D) 38122G5, Leesville (547B) 39122B4, Wilbur Springs (547C) 39122A4, Hough Springs (548A) 39122B5

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

1052

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 .

-122.375,38.875