Taxon Details

Dendromecon harfordii var. rhamnoides

south island bush-poppy

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Taxon Summary:

Dendromecon harfordii var. rhamnoides, commonly known as south island bush-poppy, is a perennial evergreen shrub in the Papaveraceae that is found only in California. It occurs within Chaparral, Cismontane woodland, and Coastal scrub, growing at elevations from 150 to 520 meters. Dendromecon harfordii var. rhamnoides is ranked 3.1, Plants About Which We Need More Information, A Review List; Seriously threatened in California.

Classification

Scientific Name: Dendromecon harfordii Kell. var. rhamnoides (Greene) Munz
Common Name: south island bush-poppy
Family:	Papaveraceae
Element Code:	PDPAP08012
USDA Plants Symbol:
Synonyms/Other Names: Dendromecon rigida Benth. ssp. rhamnoides (Greene) Thorne
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	3.1
Fed List:	None
State List:	None
Global Rank:	G4T1Q
State Rank:	S1
Other Status:
CRPR Changes: changed from 1B.1 to 3.1 on 2013-02-01
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial evergreen shrub

Blooming Period: Apr-Jun

Elevation:
150 - 520 meters
490 - 1705 feet

General Habitats:

Chaparral
Cismontane woodland
Coastal scrub

Microhabitat Details:

Microhabitat:

Notes

Notes: Previously on List 1B.1. Taxonomic distinctiveness from D. harfordii is uncertain; needs further study. Last seen on SCM Isl. in 1966. Threatened by feral herbivores. Most of the year a few plants are in flower. A synonym of D. harfordii in TJM (1993) and TJM 2. USFWS uses the name D. rigida ssp. rhamnoides.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	3
	Total EOs	% of EOs
EOs with Threat Listed:	2	29 %
Non-native animal impacts	2	28%
Foot traffic/trampling	1	14%
Grazing	1	14%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					7
A	B	C	D	X	U
0	0	0	0	2	5

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

Presence:
Presumed Extant	5
Possibly Extirpated	0
Presumed Extirpated	2

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Los Angeles (LAX)

Quads: Name (Quad Code)
San Clemente Island North (3211885)*, San Clemente Island South (3211873)*, Santa Catalina East (3311833), Santa Catalina North (3311844), Santa Catalina West (3311845)

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