Platanthera yosemitensis

Colwell, Sheviak & P. Moore

Yosemite Bog-orchid

G2Imperiled Found in 4 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
EndangeredIUCN
LowThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.806492
Element CodePMORC1Y1B0
Record TypeSPECIES
ClassificationSpecies
Classification StatusProvisional
Name CategoryVascular Plant
IUCNEndangered
CITESAppendix II
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassMonocotyledoneae
OrderOrchidales
FamilyOrchidaceae
GenusPlatanthera
Concept Reference
Alison E.L. Colwell, Charles J. Sheviak, and Peggy E. Moore. 2007. A new Platanthera (Orchidaceae) from Yosemite National Park, California. Madrono 54(1): 86-93.
Conservation Status
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2014-08-08
Change Date2007-09-10
Edition Date2014-08-10
Edition AuthorsTomaino, A. (2007), rev. A. Treher (2014)
Threat ImpactLow
Range Extent250-1000 square km (about 100-400 square miles)
Number of Occurrences6 - 20
Rank Reasons
Platanthera yosemitensis was described in 2007 and occurs only in the wet montane meadows of Yosemite National Park (Colwell et al. 2007). It is known from approximately seven populations, four of which have fewer than ten flowering individuals. Additional populations may be found in the central Sierra Nevada. Possible threats include meadow succession, recreational activities, and horticultural collecting (Lazar and Bittman 2007).
Range Extent Comments
Platanthera yosemitensis is endemic to Yosemite National Park, in Fresno and Mariposa Counties in California, although its range could be larger (Colwell et al. 2007).
Threat Impact Comments
May be threatened by meadow succession, recreational activities, and horticultural collecting (Lazar and Bittman 2007).
Ecology & Habitat

Habitat

Wet montane meadows (Colwell et al. 2007). Meadows and seeps (Lazar and Bittman 2007).
Palustrine Habitats
HERBACEOUS WETLANDBog/fen
Other Nations (1)
United StatesN2
ProvinceRankNative
CaliforniaS2Yes
Threat Assessments
ThreatScopeSeverityTiming
1 - Residential & commercial developmentUnknownUnknownHigh (continuing)
1.3 - Tourism & recreation areasUnknownUnknownHigh (continuing)
5 - Biological resource useUnknownUnknownHigh (continuing)
5.2 - Gathering terrestrial plantsUnknownUnknownHigh (continuing)
6 - Human intrusions & disturbanceUnknownUnknownHigh (continuing)
6.1 - Recreational activitiesUnknownUnknownHigh (continuing)
6.3 - Work & other activitiesUnknownUnknownHigh (continuing)
11 - Climate change & severe weatherUnknownUnknownHigh (continuing)
11.1 - Habitat shifting & alterationUnknownUnknownHigh (continuing)
11.2 - DroughtsUnknownUnknownHigh (continuing)
11.3 - Temperature extremesUnknownUnknownHigh (continuing)
11.4 - Storms & floodingUnknownUnknownHigh (continuing)

Plant Characteristics
Economic Value (Genus)No
Roadless Areas (4)
California (4)
AreaForestAcres
Devil GulchSierra National Forest30,490
Dinkey LakesSierra National Forest34,171
Oat Mtn.Sequoia National Forest12,223
Sycamore SpringsSierra National Forest10,015
References (2)
  1. Alison E.L. Colwell, Charles J. Sheviak, and Peggy E. Moore. 2007. A new <i>Platanthera </i>(Orchidaceae) from Yosemite National Park, California. Madrono 54(1): 86-93.
  2. Lazar, K. and R. Bittman. 2007. Rare plant status review: <i>Platanthera yosemitensis</i>, August 9, 2007<i>.</i> California Native Plant Society and the California Natural Diversity Database.