Taxon Details

Lavatera assurgentiflora ssp. glabra

southern island mallow

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Photo of Lavatera assurgentiflora ssp. glabra

Taxon Summary:

Lavatera assurgentiflora ssp. glabra, commonly known as southern island mallow, is a perennial evergreen shrub in the Malvaceae that is found only in California. It occurs within Coastal bluff scrub, growing at elevations from 5 to 250 meters. Lavatera assurgentiflora ssp. glabra is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification

Scientific Name: Lavatera assurgentiflora Kell. ssp. glabra Philbrick
Common Name: southern island mallow
Family:	Malvaceae
Element Code:	PDMAL0N022
USDA Plants Symbol:	LAASG
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	None
State List:	None
Global Rank:	G1T1
State Rank:	S1
Other Status:	SB_CalBG/RSABG; SB_SBBG
CRPR Changes:
Add Date:	1984-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial evergreen shrub

Blooming Period: May-Sep

Elevation:
5 - 250 meters
15 - 820 feet

General Habitats:

Coastal bluff scrub

Microhabitat Details:

Microhabitat:

Notes

Notes: Possibly threatened by development. Feral herbivores removed from SCM Isl.; still a threat on SCT Isl. See L. assurgentiflora in The Jepson Manual. See The California Islands: Proceedings of a Multidisciplinary Symposium, pp. 175-178 (1980) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	5
	Total EOs	% of EOs
EOs with Threat Listed:	5	42 %
Non-native plant impacts	3	25%
Recreational use (non-ORV)	2	16%
Foot traffic/trampling	2	16%
Development	1	8%
Road/trail construction/maint.	1	8%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					12
A	B	C	D	X	U
1	0	4	0	0	7

Occurrence Status:
Historical >20 Years	8
Recent <=20 Years	4

Presence:
Presumed Extant	12
Possibly Extirpated	0
Presumed Extirpated	0

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