Species Details

Betula glandulosa

dwarf resin birch

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Classification

Scientific Name: Betula glandulosa Michx.
Common Name: dwarf resin birch
Family:	Betulaceae
Element Code:	PDBET02040
USDA Plants Symbol:	BEGL
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	2B.2
Fed List:	None
State List:	None
Global Rank:	G5
State Rank:	S2
Other Status:	IUCN_LC
CRPR Changes: changed from 2.2 to 2B.2 on 2013-06-12
Add Date:	2001-01-01
Date Edited:	2024-03-06

Ecology and Life History

Lifeform: perennial deciduous shrub

Blooming Period: May-Jul

Elevation:
1300 - 2300 meters
4265 - 7545 feet

General Habitats:

Bogs and fens
Lower montane coniferous forest
Meadows and seeps
Marshes and swamps
Subalpine coniferous forest

Microhabitat Details:

Microhabitat:

Mesic

Notes

Notes: Possibly threatened by grazing, trampling, vehicles, and recreational activities. CA plants previously misapplied to Betula pumila var. glandulifera.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	6
	Total EOs	% of EOs
EOs with Threat Listed:	9	32 %
Grazing	8	28%
Foot traffic/trampling	4	14%
Altered flood/tidal/hydrologic regime	2	7%
Dam/Inundation	1	3%
Recreational use (non-ORV)	1	3%
Surface water diversion	1	3%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					28
A	B	C	D	X	U
0	4	4	3	1	16

Occurrence Status:
Historical >20 Years	17
Recent <=20 Years	11

Presence:
Presumed Extant	27
Possibly Extirpated	1
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Alaska (AK), California (CA), Colorado (CO), Idaho (ID), Maine (ME), Montana (MT), New Hampshire (NH), New York (NY), Oregon (OR), South Dakota (SD), Utah (UT), Washington (WA), Wyoming (WY)

California Counties and Islands: Name (Code)
Butte (BUT), Lassen (LAS), Modoc (MOD), Plumas (PLU), Siskiyou (SIS), Tehama (TEH)

Quads: Name (Quad Code)
Almanor (4012122), Antelope Mtn. (4012058), Bogard Buttes (4012152), Caribou (4012112), Chester (4012132), Childs Meadows (4012134), Davis Creek (4112063), Eagle Peak (4112032), Emerson Peak (4112022), Fort Bidwell (4112072), Humbug Valley (4012123), Jess Valley (4112023), Jonesville (4012114), Lake Annie (4112081), Mt. Bidwell (4112082), Panther Rock (4112272), Pegleg Mtn. (4012048), Warren Peak (4112042)

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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Selected References

Species Account:

Betula glandulosa account for potential Species of Conservation Concern evaluation (2022)