Species Details

Arctostaphylos manzanita ssp. elegans

Konocti manzanita

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Photo of Arctostaphylos manzanita ssp. elegans

Classification

Scientific Name: Arctostaphylos manzanita Parry ssp. elegans (Jeps.) Wells
Common Name: Konocti manzanita
Family:	Ericaceae
Element Code:	PDERI04271
USDA Plants Symbol:	ARMAE
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.3
Fed List:	None
State List:	None
Global Rank:	G5T3
State Rank:	S3
Other Status:	BLM_S; SB_UCSC
CRPR Changes:
Add Date:	2001-01-01
Date Edited:	2024-11-05

Ecology and Life History

Lifeform: perennial evergreen shrub

Blooming Period: (Jan)Mar-May(Jul)

Elevation:
395 - 1615 meters
1295 - 5300 feet

General Habitats:

Chaparral
Cismontane woodland
Lower montane coniferous forest

Microhabitat Details:

Microhabitat:

Volcanic

Notes

Notes:
Threats: Possibly threatened by development, geothermal energy development, conversion to vineyards, vehicles, and road widening.
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	6
	Total EOs	% of EOs
EOs with Threat Listed:	10	14 %
Development	7	10%
Agriculture	5	7%
Road/trail construction/maint.	5	7%
Erosion/runoff	1	1%
Improper burning regime	1	1%
Mining	1	1%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					69
A	B	C	D	X	U
1	7	2	1	0	58

Occurrence Status:
Historical >20 Years	56
Recent <=20 Years	13

Presence:
Presumed Extant	69
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Colusa (COL), Glenn (GLE), Humboldt (HUM), Lake (LAK), Mendocino (MEN), Napa (NAP), Shasta (SHA), Sonoma (SON), Tehama (TEH), Trinity (TRI)

Quads: Name (Quad Code)
Alder Springs (3912266), Asti (3812278), Bartlett Mtn. (3912227), Bartlett Springs (3912226), Chrome (3912265), Clearlake Highlands (3812286), Clearlake Oaks (3912216), Cloverdale (3812371), Covelo East (3912372), Covelo West (3912373), Crockett Peak (3912247), Detert Reservoir (3812265), Dinsmore (4012345), Felkner Hill (3912256), Fouts Springs (3912236), Gilmore Peak (3912235), Hall Ridge (3912276), Highland Springs (3812288), Kelseyville (3812287), Lake Pillsbury (3912248), Lakeport (3912218), Lucerne (3912217), Mount St. Helena (3812266), Newville (3912275), Pony Buck Peak (4012331), Potato Hill (3912237), Riley Ridge (3912286), Smoky Creek (4012332), St. John Mtn. (3912246), Tan Oak Park (3912375), The Geysers (3812277), Whispering Pines (3812276), Zenia (4012324)

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

Click on quad for name. Hold Shift Key to use mouse scroll wheel

Selected References

Original Description:	Erythea 1:15 (1893)
Revised Nomenclature:	Madroño 19(6):201 (1968)
Species Account:	Arctostaphylos manzanita ssp. elegans profile for potential Species of Conservation Concern evaluation (2021)
Other:	American Journal of Botany 27(3):186-190