Species Details

Lyonothamnus floribundus ssp. aspleniifolius

Santa Cruz Island ironwood

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Classification

Scientific Name: Lyonothamnus floribundus Gray ssp. aspleniifolius (Greene) Raven
Common Name: Santa Cruz Island ironwood
Family:	Rosaceae
Element Code:	PDROS12011
USDA Plants Symbol:	LYFLA
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G3T3
State Rank:	S3
Other Status:	IUCN_VU; SB_CalBG/RSABG
CRPR Changes:
Add Date:	1980-01-01
Date Edited:	2021-07-14

Ecology and Life History

Lifeform: perennial evergreen tree

Blooming Period: May-Jul

Elevation:
20 - 580 meters
65 - 1905 feet

General Habitats:

Broadleafed upland forest
Chaparral
Cismontane woodland

Microhabitat Details:

Microhabitat:

Notes

Notes: Can bloom intermittently through much of year. Threatened by grazing on SCZ and SRO islands. Feral herbivores removed from SCM Isl.; stump-sprouting noted.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	%
No threats

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					78
A	B	C	D	X	U
0	2	0	0	0	76

Occurrence Status:
Historical >20 Years	15
Recent <=20 Years	63

Presence:
Presumed Extant	78
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), Santa Barbara (SBA)

Quads: Name (Quad Code)
San Clemente Island Central (3211874), San Clemente Island South (3211873), Santa Cruz Island A (3311987), Santa Cruz Island B (3311986), Santa Cruz Island C (3311985), Santa Cruz Island D (3311984), Santa Rosa Island East (3311988), Santa Rosa Island North (3312081), Santa Rosa Island South (3312071)

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