Species Details

Calycadenia oppositifolia

Butte County calycadenia

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Classification

Scientific Name: Calycadenia oppositifolia (Greene) Greene
Common Name: Butte County calycadenia
Family:	Asteraceae
Element Code:	PDAST1P070
USDA Plants Symbol:	CAOP
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	4.2
Fed List:	None
State List:	None
Global Rank:	G3
State Rank:	S3
Other Status:	USFS_S
CRPR Changes: changed from 1B to 4 on 2004-08-27
Add Date:	1974-01-01
Date Edited:	2023-06-06

Ecology and Life History

Lifeform: annual herb

Blooming Period: Apr-Jul

Elevation:
90 - 945 meters
295 - 3100 feet

General Habitats:

Chaparral
Cismontane woodland
Lower montane coniferous forest
Meadows and seeps
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Granitic (sometimes)
Openings
Serpentine (sometimes)
Volcanic

Notes

Notes: Can be locally abundant. Threatened by development, road construction, road maintenance, vehicles, recreational activities, and grazing. See Bulletin of the Torrey Botanical Club 9:110 (1882) for original description, and Flora Franciscana p. 423 (1897) for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

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

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

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Butte (BUT)

Quads: Name (Quad Code)
Bangor (3912144), Berry Creek (3912164), Butte Meadows (4012115), Cherokee (3912165), Chico (3912167), Hamlin Canyon (3912166), Oroville (3912155), Oroville Dam (3912154), Paradise East (3912175), Paradise West (3912176), Pulga (3912174), Richardson Springs (3912177)

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

CNPS Status Review:

Proposed Rank Change from CRPR 1B to 4 (2004)