Taxon Report

Acanthoscyphus parishii (Parry) Small var. parishii

Parish's oxytheca

Print Report

Taxon Summary

Acanthoscyphus parishii var. parishii, commonly known as Parish's oxytheca, is a annual herb in the Polygonaceae that is found only in California. It occurs within Chaparral, and Lower montane coniferous forest, growing at elevations from 1220 to 2600 meters. Acanthoscyphus parishii var. parishii is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification


Scientific Name:	Acanthoscyphus parishii (Parry) Small var. parishii
Common Name:	Parish's oxytheca
Family:	Polygonaceae
Element Code:	PDPGN0J044
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: Jun-Sep	Jun-Sep
Elevation:	1220-2600 (4005-8530)
General Habitats:	Chaparral, Lower montane coniferous forest
Microhabitat:	Gravelly (sometimes), Sandy (sometimes)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.2
Global Rank:	G4?T3T4
State Rank:	S3S4
State List:	None
Fed List:	None
Other Status:	SB_CalBG/RSABG
CRPR Changes:	added to 4.2 on 2007-04-05

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: True
California Counties and Islands: Name (Code)
Los Angeles (LAX), San Bernardino (SBD), Ventura (VEN)
Quads: Name (Quad Code)
Acton (3411842)?, Alamo Mountain (3411868), Big Bear Lake (3411628), Chilao Flat (3411831), Crystal Lake (3411737), Harrison Mtn. (3411722), Keller Peak (3411721), Lake Arrowhead (3411732), Mescal Creek (3411746), Mount San Antonio (3411736), Mt. Baldy (3411726), Mt. Wilson (3411821), Pacifico Mountain (3411841), Reyes Peak (3411963), Telegraph Peak (3411735), Waterman Mtn. (3411738)

Threat List Data from the CNDDB


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

Notes



See Oxytheca parishii var. parishii in The Jepson Manual (1993). See Proceedings of the Davenport Academy of Natural Sciences 3: 176 (1882) for original description and Harvard Papers in Botany 9: 143-230 (2004) for revised nomenclature.
Threats:

Taxonomy:

Selected References

Proposed Addition to California Rare Plant Rank 4.2 (2007)

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 January 2025].