*The database used to provide updates to the Online Inventory is under construction. View updates and changes made since May 2019 here.
Usnea longissima
Common Name: Methuselah's beard lichen
Family: Parmeliaceae
Element Code: NLLEC5P420
Full Name: Usnea longissima Ach.

Biology Glossary
  • Lifeform: fruticose lichen (epiphytic)
  • Blooming Period:
  • Habitat: On tree branches; usually on old growth hardwoods and conifers.
    • Broadleafed upland forest
    • North Coast coniferous forest
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 206
  • Element Occurrence Ranks:
    A B C D X U
    14 34 57 47 2 52
  • Population Status:
    >20 yrs
    <=20 yrs
    58 148
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
    204 1 1
Notes Glossary
  • Threatened by development, road maintenance, and logging. See CALS Conservation Committee sponsorship by E. Peterson (2005) for additional information.
  • CALS Conservation Committee
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 2014-03-01
  • Last Update: 2014-05-29
Location Glossary
  • Elevation: 50 - 1460 meters
  • California Endemic: no
  • Other States: Alaska, Maine, Michigan, Minnesota, Missouri, Montana, New Hampshire, New York, Oregon, Vermont, Washington, Wisconsin
  • California Counties and Islands:   name (code)
    Del Norte (DNT),  Humboldt (HUM),  Mendocino (MEN),  Santa Cruz (SCR),  San Mateo (SMT),  Sonoma (SON)
  • Quads:   name (DWR code) USGS code
    Big Basin (408B) 3712222,  Woodside (429A) 3712243,  Camp Meeker (502B) 3812248,  Duncans Mills (503A) 3812341,  Guerneville (518C) 3812258,  Fort Ross (519C) 3812352,  Cazadero (519D) 3812351,  Annapolis (520A) 3812363,  Stewarts Point (520B) 3812364,  Plantation (520D) 3812353,  Yorkville (535B) 3812382,  Orrs Springs (551A) 3912323,  Bailey Ridge (551B) 3912324,  Elk (552B) 3912326,  Mallo Pass Creek (552C) 3912316,  Noyo Hill (568B) 3912346,  Mathison Peak (568C) 3912336,  Lincoln Ridge (584B) 3912366,  Dutchmans Knoll (584C) 3912356,  Inglenook (585D) 3912357,  Noble Butte (600B) 3912386,  Leggett (600C) 3912376,  Piercy (601A) 3912387,  Bear Harbor (601B) 3912388,  Mistake Point (601C) 3912378,  Hales Grove (601D) 3912377,  Harris (616C) 4012316,  Honeydew (618A) 4012421,  Shubrick Peak (618B) 4012422,  Shelter Cove (618D) 4012411,  Bridgeville (635A) 4012347,  Redcrest (635B) 4012348,  Weott (635C) 4012338,  Myers Flat (635D) 4012337,  Scotia (636A) 4012441,  Taylor Peak (636B) 4012442,  Buckeye Mtn. (636C) 4012432,  Bull Creek (636D) 4012431,  Iaqua Buttes (653B) 4012368,  Owl Creek (653C) 4012358,  Yager Junction (653D) 4012357,  McWhinney Creek (654A) 4012461,  Hydesville (654D) 4012451,  Korbel (671C) 4012378,  Arcata South (672D) 4012471,  Bald Hills (688B) 4112328,  Ah Pah Ridge (705B) 4112348,  Fern Canyon (706A) 4112441,  Cant Hook Mtn. (722B) 4112368,  Childs Hill (723A) 4112461,  Shelly Creek Ridge (739A) 4112387,  Gasquet (739C) 4112378,  High Divide (740A) 4112481,  Hiouchi (740D) 4112471
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable. This data should NOT be substituted for pre-project review or for on-site surveys.
Includes unprocessed quads for CRPR 3 and 4 plants; unprocessed location data has not been quality controlled and may contain errors.
Presumed Extant Presumed Extirpated or Unknown 3817
Links to Leading Resources of Taxon Information
Suggested Citation
California Native Plant Society, Rare Plant Program. . Inventory of Rare and Endangered Plants of California (online edition, v8-03), with lichen data from the California Lichen Society. Website http://www.rareplants.cnps.org [accessed ].

3712222=Big Basin (408B) 3712222;3712243=Woodside (429A) 3712243;3812248=Camp Meeker (502B) 3812248;3812341=Duncans Mills (503A) 3812341;3812258=Guerneville (518C) 3812258;3812352=Fort Ross (519C) 3812352;3812351=Cazadero (519D) 3812351;3812363=Annapolis (520A) 3812363;3812364=Stewarts Point (520B) 3812364;3812353=Plantation (520D) 3812353;3812382=Yorkville (535B) 3812382;3912323=Orrs Springs (551A) 3912323;3912324=Bailey Ridge (551B) 3912324;3912326=Elk (552B) 3912326;3912316=Mallo Pass Creek (552C) 3912316;3912346=Noyo Hill (568B) 3912346;3912336=Mathison Peak (568C) 3912336;3912366=Lincoln Ridge (584B) 3912366;3912356=Dutchmans Knoll (584C) 3912356;3912357=Inglenook (585D) 3912357;3912386=Noble Butte (600B) 3912386;3912376=Leggett (600C) 3912376;3912387=Piercy (601A) 3912387;3912388=Bear Harbor (601B) 3912388;3912378=Mistake Point (601C) 3912378;3912377=Hales Grove (601D) 3912377;4012316=Harris (616C) 4012316;4012421=Honeydew (618A) 4012421;4012422=Shubrick Peak (618B) 4012422;4012411=Shelter Cove (618D) 4012411;4012347=Bridgeville (635A) 4012347;4012348=Redcrest (635B) 4012348;4012338=Weott (635C) 4012338;4012337=Myers Flat (635D) 4012337;4012441=Scotia (636A) 4012441;4012442=Taylor Peak (636B) 4012442;4012432=Buckeye Mtn. (636C) 4012432;4012431=Bull Creek (636D) 4012431;4012368=Iaqua Buttes (653B) 4012368;4012358=Owl Creek (653C) 4012358;4012357=Yager Junction (653D) 4012357;4012461=McWhinney Creek (654A) 4012461;4012451=Hydesville (654D) 4012451;4012378=Korbel (671C) 4012378;4012471=Arcata South (672D) 4012471;4112328=Bald Hills (688B) 4112328;4112348=Ah Pah Ridge (705B) 4112348;4112441=Fern Canyon (706A) 4112441;4112368=Cant Hook Mtn. (722B) 4112368;4112461=Childs Hill (723A) 4112461;4112387=Shelly Creek Ridge (739A) 4112387;4112378=Gasquet (739C) 4112378;4112481=High Divide (740A) 4112481;4112471=Hiouchi (740D) 4112471