CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record piperia_candida - Wed, Dec. 8, 2021, 20:56 ET b
Piperia candida
common namewhite-flowered rein orchid
CalPhotos image
more photos
© 2002 Scott Peden  Follow image link for photo data.
life formperennial herb
CA Rare Plant Rank
List 1B.2
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S3      ranking system key
global rank
G3     G3: 21-80 occurrences or 3,000-10,000 individuals OR 10,000-50,000 acres
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (76):
Castle Rock Ridge (408A)? 3712221, Big Basin (408B) 3712222, Davenport (408C) 3712212, Mindego Hill (428C) 3712232, Cazadero (519D) 3812351, Annapolis (520A) 3812363, Orrs Springs (551A) 3912323, Bailey Ridge (551B) 3912324, Philo (551C) 3912314, Navarro (552A) 3912325, Elk (552B) 3912326, Cold Spring (552D) 3912315, Willits (567A) 3912343, Greenough Ridge (567C) 3912334, Mathison Peak (568C) 3912336, Comptche (568D) 3912335, Laytonville (583B) 3912364, Longvale (583C) 3912354, Cahto Peak (584A) 3912365, Lincoln Ridge (584B) 3912366, Sherwood Peak (584D) 3912355, Covelo East (598C) 3912372, Noble Butte (600B) 3912386, Leggett (600C) 3912376, Piercy (601A) 3912387, Hales Grove (601D) 3912377, Miranda (617A) 4012327, Briceland (617C) 4012318, Honeydew (618A) 4012421, Dubakella Mountain 15' SE (632D) 4012331, Naufus Creek (633A) 4012343, Forest Glen (633D) 4012333, Larabee Valley (634B) 4012346, Bridgeville (635A) 4012347, Weott (635C) 4012338, Myers Flat (635D) 4012337, Scotia (636A) 4012441, Buckeye Mountain (636C) 4012432, Bull Creek (636D) 4012431, Hyampom (651C) 4012354, Sims Mountain (652A) 4012365, Board Camp Mountain (652B) 4012366, Showers Mountain (652C) 4012356, Blake Mountain (652D) 4012355, Mad River Buttes (653A) 4012367, Iaqua Buttes (653B) 4012368, Siligo Peak (667B)? 4012288, Thurston Peaks (668B) 4012382, Salyer (670A) 4012385, Willow Creek (670B) 4012386, Hennessy Peak (670D) 4012375, Lord-ellis Summit (671A) 4012387, Maple Creek (671D) 4012377, Weitchpec (687B) 4112326, Hoopa (687C) 4112316, French Camp Ridge (688A) 4112327, Bald Hills (688B) 4112328, Hupa Mountain (688D)? 4112317, Rodgers Peak (689A) 4112421, Crannell (689D) 4112411, Sawyers Bar (702C) 4112332, Somes Bar (703B) 4112344, Fish Lake (704C) 4112336, Holter Ridge (705C) 4112338, Johnsons (705D) 4112337, Cant Hook Mountain (722B) 4112368, Childs Hill (723A) 4112461, Kangaroo Mountain (736B) 4112382, Seiad Valley (736C) 4112372, Broken Rib Mountain (738B) 4112386, Preston Peak (738D) 4112375, Shelly Creek Ridge (739A) 4112387, High Plateau Mountain (739B) 4112388, Gasquet (739C) 4112378, Hurdygurdy Butte (739D) 4112377, Hiouchi (740D) 4112471
quad data info

Counties, states, regions:
Del Norte (DNT), Humboldt (HUM), Mendocino (MEN), Santa Clara (SCL), Santa Cruz (SCR), Siskiyou (SIS), San Mateo (SMT), Sonoma (SON), Trinity (TRI), Oregon (OR), Washington (WA)?
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Broadleafed upland forest (BUFrs)
•Lower montane coniferous forest (LCFrs)
•North Coast coniferous forest (NCFrs)/sometimes serpentinite
blooming period (Mar),May-Sep   Months in parentheses are uncommon.
elevation range30 - 1310 meters
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.
full namePiperia candida Morgan & Ackerman
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  PICA13 Element Code  PMORC1X050
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web

Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Wed, Dec. 8, 2021 from

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