Piperia candida
Common Name: white-flowered rein orchid
Family: Orchidaceae
Element Code: PMORC1X050
Full Name: Piperia candida Morgan & Ackerman

2015 Adrienne Simmons
Biology Glossary
  • Lifeform: perennial herb
  • Blooming Period: March - September
  • Habitat: sometimes serpentinite.
    • Broadleafed upland forest
    • Lower montane coniferous forest
    • North Coast coniferous forest
Rarity Status Glossary
Occurrence Data from DFG
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 113
  • Element Occurrence Ranks:
    A B C D X U
    2 36 26 5 1 43
  • Population Status:
    >20 yrs
    <=20 yrs
    27 86
  • Presence:
    Present Extant Possibly Extirpated Extirpated
    112 1 0
Notes Glossary
  • Difficult to determine rarity as some populations rarely flower. Populations often have small numbers. Threatened by logging. Difficult to identify from herbarium material. See Lindleyana 5(4):205-211 (1990) for original description, and The Wild Orchids of California, p. 109-110 (1995) by R. Coleman for species account.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1994-01-01
  • Last Update: 2010-03-15
Location Glossary
  • Elevation: 30 - 1310 meters
  • California Endemic: no
  • States: California, Oregon, Washington
  • California Counties and Islands:   name (code)
    Del Norte (DNT),  Humboldt (HUM),  Mendocino (MEN),  Santa Clara (SCL),  Santa Cruz (SCR),  Siskiyou (SIS),  San Mateo (SMT),  Sonoma (SON),  Trinity (TRI)
  • Quads:   name (DWR code) USGS code
    Castle Rock Ridge (408A)? 37122B1,  Big Basin (408B) 37122B2,  Davenport (408C) 37122A2,  Mindego Hill (428C) 37122C2,  Cazadero (519D) 38123E1,  Annapolis (520A) 38123F3,  Orrs Springs (551A) 39123B3,  Philo (551C) 39123A4,  Cold Spring (552D) 39123A5,  Willits (567A) 39123D3,  Comptche (568D) 39123C5,  Laytonville (583B) 39123F4,  Longvale (583C) 39123E4,  Cahto Peak (584A) 39123F5,  Lincoln Ridge (584B) 39123F6,  Sherwood Peak (584D) 39123E5,  Covelo East (598C) 39123G2,  Noble Butte (600B) 39123H6,  Leggett (600C) 39123G6,  Piercy (601A) 39123H7,  Hales Grove (601D) 39123G7,  Briceland (617C) 40123A8,  Honeydew (618A) 40124B1,  Naufus Creek (633A) 40123D3,  Forest Glen (633D) 40123C3,  Larabee Valley (634B) 40123D6,  Bridgeville (635A) 40123D7,  Weott (635C) 40123C8,  Myers Flat (635D) 40123C7,  Scotia (636A) 40124D1,  Buckeye Mtn. (636C) 40124C2,  Bull Creek (636D) 40124C1,  Hyampom (651C) 40123E4,  Sims Mountain (652A) 40123F5,  Showers Mtn. (652C) 40123E6,  Mad River Buttes (653A) 40123F7,  Iaqua Buttes (653B) 40123F8,  Siligo Peak (667B)? 40122H8,  Thurston Peaks (668B) 40123H2,  Salyer (670A) 40123H5,  Willow Creek (670B) 40123H6,  Hennessy Peak (670D) 40123G5,  Lord-ellis Summit (671A) 40123H7,  Maple Creek (671D) 40123G7,  Weitchpec (687B) 41123B6,  Hoopa (687C) 41123A6,  French Camp Ridge (688A) 41123B7,  Bald Hills (688B) 41123B8,  Hupa Mountain (688D)? 41123A7,  Rodgers Peak (689A) 41124B1,  Crannell (689D) 41124A1,  Sawyers Bar (702C) 41123C2,  Somes Bar (703B) 41123D4,  Fish Lake (704C) 41123C6,  Holter Ridge (705C) 41123C8,  Johnsons (705D) 41123C7,  Cant Hook Mtn. (722B) 41123F8,  Childs Hill (723A) 41124F1,  Kangaroo Mtn. (736B) 41123H2,  Seiad Valley (736C) 41123G2,  Broken Rib Mtn. (738B) 41123H6,  Preston Peak (738D) 41123G5,  Shelly Creek Ridge (739A) 41123H7,  High Plateau Mtn. (739B) 41123H8,  Gasquet (739C) 41123G8,  Hurdygurdy Butte (739D) 41123G7,  Hiouchi (740D) 41124G1
  • 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.
Presumed Extant Presumed Extirpated or Unknown 728
Links to Leading Resources of Taxon Information
Suggested Citation
CNPS, Rare Plant Program. . Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. Website http://www.rareplants.cnps.org [accessed ].

37122B1=Castle Rock Ridge (408A)? 37122B1;37122B2=Big Basin (408B) 37122B2;37122A2=Davenport (408C) 37122A2;37122C2=Mindego Hill (428C) 37122C2;38123E1=Cazadero (519D) 38123E1;38123F3=Annapolis (520A) 38123F3;39123B3=Orrs Springs (551A) 39123B3;39123A4=Philo (551C) 39123A4;39123A5=Cold Spring (552D) 39123A5;39123D3=Willits (567A) 39123D3;39123C5=Comptche (568D) 39123C5;39123F4=Laytonville (583B) 39123F4;39123E4=Longvale (583C) 39123E4;39123F5=Cahto Peak (584A) 39123F5;39123F6=Lincoln Ridge (584B) 39123F6;39123E5=Sherwood Peak (584D) 39123E5;39123G2=Covelo East (598C) 39123G2;39123H6=Noble Butte (600B) 39123H6;39123G6=Leggett (600C) 39123G6;39123H7=Piercy (601A) 39123H7;39123G7=Hales Grove (601D) 39123G7;40123A8=Briceland (617C) 40123A8;40124B1=Honeydew (618A) 40124B1;40123D3=Naufus Creek (633A) 40123D3;40123C3=Forest Glen (633D) 40123C3;40123D6=Larabee Valley (634B) 40123D6;40123D7=Bridgeville (635A) 40123D7;40123C8=Weott (635C) 40123C8;40123C7=Myers Flat (635D) 40123C7;40124D1=Scotia (636A) 40124D1;40124C2=Buckeye Mtn. (636C) 40124C2;40124C1=Bull Creek (636D) 40124C1;40123E4=Hyampom (651C) 40123E4;40123F5=Sims Mountain (652A) 40123F5;40123E6=Showers Mtn. (652C) 40123E6;40123F7=Mad River Buttes (653A) 40123F7;40123F8=Iaqua Buttes (653B) 40123F8;40122H8=Siligo Peak (667B)? 40122H8;40123H2=Thurston Peaks (668B) 40123H2;40123H5=Salyer (670A) 40123H5;40123H6=Willow Creek (670B) 40123H6;40123G5=Hennessy Peak (670D) 40123G5;40123H7=Lord-ellis Summit (671A) 40123H7;40123G7=Maple Creek (671D) 40123G7;41123B6=Weitchpec (687B) 41123B6;41123A6=Hoopa (687C) 41123A6;41123B7=French Camp Ridge (688A) 41123B7;41123B8=Bald Hills (688B) 41123B8;41123A7=Hupa Mountain (688D)? 41123A7;41124B1=Rodgers Peak (689A) 41124B1;41124A1=Crannell (689D) 41124A1;41123C2=Sawyers Bar (702C) 41123C2;41123D4=Somes Bar (703B) 41123D4;41123C6=Fish Lake (704C) 41123C6;41123C8=Holter Ridge (705C) 41123C8;41123C7=Johnsons (705D) 41123C7;41123F8=Cant Hook Mtn. (722B) 41123F8;41124F1=Childs Hill (723A) 41124F1;41123H2=Kangaroo Mtn. (736B) 41123H2;41123G2=Seiad Valley (736C) 41123G2;41123H6=Broken Rib Mtn. (738B) 41123H6;41123G5=Preston Peak (738D) 41123G5;41123H7=Shelly Creek Ridge (739A) 41123H7;41123H8=High Plateau Mtn. (739B) 41123H8;41123G8=Gasquet (739C) 41123G8;41123G7=Hurdygurdy Butte (739D) 41123G7;41124G1=Hiouchi (740D) 41124G1