Species Details

Usnea longissima

Methuselah's beard lichen

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Photo of Usnea longissima
© 2021 Scot Loring
Photo of Usnea longissima
© 2014 Eric B. Peterson
Photo of Usnea longissima
© 2015 Adrienne Simmons
Scientific Name:
Usnea longissima Ach.
Common Name:
Methuselah's beard lichen
Family: Parmeliaceae
Element Code: NLLEC5P420
USDA Plants Symbol: USLO50
Synonyms/Other Names:
CA Rare Plant Rank: 4.2
Fed List: None
State List: None
Global Rank: G4
State Rank:
S4
Other Status: BLM_S
CRPR Changes:
changed from 4.3 to 4.2 on 2014-04-08
changed from 4 to 4.3 on 2014-03-21
added to 4 on 2014-03-02
Add Date: 2014-03-01
Date Edited: 2021-10-08
Lifeform: fruticose lichen (epiphytic)
Blooming Period:
Elevation:
50 - 1460 meters
165 - 4790 feet
General Habitat:
  • Broadleafed upland forest
  • North Coast coniferous forest
General Micro Habitat: On tree branches; usually on old growth hardwoods and conifers
Micro Habitat:
Notes:
Threatened by development, road maintenance, and logging. See CALS Conservation Committee sponsorship by E. Peterson (2005) for additional information.
Threats:
Taxonomy:
Other:
Total Occurrences: 206
Element Occurrence Ranks:
A B C D X U
14 34 57 47 2 52
Occurrence Status:
Historical >20 Years 150
Recent <=20 Years 56
Presence:
Presumed Extant 204
Possibly Extirpated 1
Presumed Extirpated 1
California Endemic:
California Island:
States: Name (Code)
Alaska (AK), California (CA), Maine (ME), Michigan (MI), Minnesota (MN), Missouri (MO), Montana (MT), New Hampshire (NH), New York (NY), Oregon (OR), Vermont (VT), Washington (WA), Wisconsin (WI)
California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Mendocino (MEN), San Mateo (SMT), Santa Cruz (SCR), Sonoma (SON)
Quads: Name (Quad Code)
Ah Pah Ridge (4112348), Annapolis (3812363), Arcata South (4012471), Bailey Ridge (3912324), Bald Hills (4112328), Bear Harbor (3912388), Big Basin (3712222), Blocksburg (4012336), Blue Lake (4012388), Briceland (4012318), Bridgeville (4012347), Buckeye Mtn. (4012432), Bull Creek (4012431), Camp Meeker (3812248), Cant Hook Mtn. (4112368), Cazadero (3812351), Childs Hill (4112461), Cold Spring (3912315), Comptche (3912335), Crannell (4112411), Duncans Mills (3812341), Dutchmans Knoll (3912356), Elk (3912326), Ettersburg (4012328), Eureka Hill (3812385), Fern Canyon (4112441), Ferndale (4012453), Fort Ross (3812352), Fort Seward (4012326), Fortuna (4012452), Garberville (4012317), Gasquet (4112378), Greenough Ridge (3912334), Gualala (3812375), Guerneville (3812258), Hales Grove (3912377), Harris (4012316), High Divide (4112481), Hiouchi (4112471), Honeydew (4012421), Hydesville (4012451), Iaqua Buttes (4012368), Inglenook (3912357), Korbel (4012378), Leggett (3912376), Lincoln Ridge (3912366), Lord-ellis Summit (4012387), Mad River Buttes (4012367), Mallo Pass Creek (3912316), Maple Creek (4012377), Mathison Peak (3912336), McWhinney Creek (4012461), Mendocino (3912337), Mindego Hill (3712232), Miranda (4012327), Mistake Point (3912378), Myers Flat (4012337), Navarro (3912325), Noble Butte (3912386), Northspur (3912345), Noyo Hill (3912346), Orick (4112431), Ornbaun Valley (3812383), Orrs Springs (3912323), Owl Creek (4012358), Panther Creek (4112318), Philo (3912314), Piercy (3912387), Plantation (3812353), Point Arena (3812386), Redcrest (4012348), Requa (4112451), Scotia (4012441), Shelly Creek Ridge (4112387), Shelter Cove (4012411), Sherwood Peak (3912355), Shubrick Peak (4012422), Smith River (4112482), Stewarts Point (3812364), Taylor Peak (4012442), Weott (4012338), Woodside (3712243), Yager Junction (4012357), Yorkville (3812382)
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.

Map

Presumed Extant
Counties   Quads