Taxon Details

Acanthoscyphus parishii var. abramsii

Abrams' oxytheca

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Photo of Acanthoscyphus parishii var. abramsii

Taxon Summary:

Acanthoscyphus parishii var. abramsii, commonly known as Abrams' oxytheca, is a annual herb in the Polygonaceae that is found only in California. It occurs within Chaparral (sandy, and shale), growing at elevations from 1143 to 2057 meters. Acanthoscyphus parishii var. abramsii is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Acanthoscyphus parishii (Parry) Small var. abramsii (E.A. McGregor) Reveal
Common Name: Abrams' oxytheca
Family:	Polygonaceae
Element Code:	PDPGN0J041
USDA Plants Symbol:
Synonyms/Other Names: Oxytheca parishii Parry var. abramsii (McGregor) Munz
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G4?T1T2
State Rank:	S1S2
Other Status:	USFS_S
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2022-01-05

Ecology and Life History

Lifeform: annual herb

Blooming Period: Jun-Aug

Elevation:
1143 - 2057 meters
3750 - 6750 feet

General Habitats:

Chaparral (sandy, shale)

Microhabitat Details:

Microhabitat:

Notes

Notes: See Bulletin of the Torrey Botanical Club 36: 605 (1909) for original description, Harvard Papers in Botany 9(1): 144 (2004) for revised nomenclature, and Brittonia 32(1): 70-102 (1980) and Phytologia 66(4): 386-87 (1989) for taxonomic treatments.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	1
	Total EOs	% of EOs
EOs with Threat Listed:	1	14 %
Road/trail construction/maint.	1	14%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					7
A	B	C	D	X	U
1	0	0	0	0	6

Occurrence Status:
Historical >20 Years	6
Recent <=20 Years	1

Presence:
Presumed Extant	7
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Santa Barbara (SBA), Ventura (VEN)

Quads: Name (Quad Code)
Big Pine Mtn. (3411966), Cuddy Valley (3411971), Figueroa Mtn. (3411968), Lockwood Valley (3411961), Reyes Peak (3411963), San Rafael Mtn. (3411967), Topatopa Mountains (3411951), Wheeler Springs (3411953)

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