CNPS Inventory Plant Detail

Erigeron maniopotamicus

Common Name:	Mad River fleabane daisy
Family:	Asteraceae
Synonyms:
Element Code:	PDASTE1050
Full Name:	Erigeron maniopotamicus G.L. Nesom & T.W. Nelson
USDA PLANTS Symbol:

Biology
Lifeform: perennial herb Blooming Period: June - August Habitat: open, disturbed areas (road cuts); rocky. • Lower montane coniferous forest • Meadows and seeps (open, dry)

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: S1 S1: Critically Imperiled. Global Rank: G1 G1: Critically Imperiled.

Occurrence Data from DFG
California Natural Diversity Database

Historic >20 yrs	Recent <=20 yrs
4	3

Presence:

Present Extant	Possibly Extirpated	Extirpated
7	0	0

Notes

Known from fewer than 10 occurrences from three widely disjunct locations in east-central Humboldt County and adjacent Trinity County. Potentially threatened by road maintenance, road construction, grazing, and logging. Not in The Jepson Manual. See SIDA 21(2): 673 (2004) 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: 2005-01-01
Last Update: 2010-03-15

Location

Elevation: 1350 - 1500 meters

California Endemic: yes

States: California

California Counties and Islands: name (code)
Humboldt (HUM), Trinity (TRI)

Quads: name (DWR code) USGS code
Zenia (615B) 40123B4, Dinsmore (634A) 40123D5, Board Camp Mtn. (652B) 40123F6

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

2092

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 .

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