Washington Flora Checklist
A Checklist of the Vascular Plants of Washington State
Hosted by the University of Washington Herbarium


Checklist » Orchidaceae
Orchidaceae   (Orchid Family)

Notes: The taxonomy presented here follows that presented in Flora of North America Volume 26.

Family Synonyms: (none)

Literature: (none)

Family treatment authored by Fred Weinmann; last updated 12/12/2013 by David Giblin
Taxon (native species in boldface) # Synonyms Common Names
Calypso bulbosa (L.) Oakes var. americana (R. Br.) Luer   [FNA26] 2 calypso, fairy-slipper
Calypso bulbosa (L.) Oakes var. occidentalis (Holz.) B. Boivin   [FNA26] 2 calypso, fairy-slipper
Cephalanthera austiniae (A. Gray) A. Heller   [FNA26] 2 phantom orchid
Coeloglossum viride (L.) Hartman   [FNA26] 6 frog-orchis, long-bracted orchid
Corallorhiza maculata (Raf.) Raf. var. maculata    [FNA26] 5 spotted coralroot
Corallorhiza maculata (Raf.) Raf. var. occidentalis (Lindl.) Ames   [FNA26] 5 western spotted coralroot
Corallorhiza maculata (Raf.) Raf. var. ozettensis E. Tisch   [not in FNA] 1 ozette coralroot
Corallorhiza mertensiana Bong.   [FNA26, H&C] 2 western coralroot, Pacific coralroot
Corallorhiza striata Lindl. var. striata    [FNA26] 2 striped coralroot, hooded coralroot
Corallorhiza striata Lindl. var. vreelandii (Rydb.) L. O. Williams   [FNA26] 5 vreeland's striped coralroot
Corallorhiza trifida Châtel.   [FNA26, H&C] 5 early or northern coralroot
Cypripedium ×columbiana Sheviak   [not in H&C] 0 hybrid or Columbia lady's-slipper
Cypripedium fasciculatum Kellogg ex S. Watson   [FNA26, H&C] 1 clustered lady's-slipper
Cypripedium montanum Dougl. ex Lindl.   [FNA26, H&C] 0 mountain lady's-slipper
Cypripedium parviflorum Salisb.   [FNA26] 4 yellow lady's-slipper or fairy slipper
Epipactis gigantea Douglas ex Hook.   [FNA26, H&C] 4 giant helleborine
Epipactis helleborine (L.) Crantz   [FNA26, H&C] 2 helleborine, broad-leaved or garden helleborine
Goodyera oblongifolia Raf.   [FNA26, H&C] 3 western or giant rattlesnake-plantain
Liparis loeselii (L.) Rich.   [FNA26, H&C] 5 Loesel's twayblade, fen orchid
Listera banksiana Lindl.   [Draft Revised H&C] 4 northwestern twayblade
Listera borealis Morong   [FNA26, H&C] 2 northern twayblade
Listera convallarioides (Sw.) Nutt. ex Ell.   [FNA26, H&C] 5 broad-lip twayblade
Listera cordata (L.) R. Br.   [FNA26, H&C] 8 heart-leaf twayblade
Malaxis monophyllos (L.) Sw. var. brachypoda (A. Gray) F. Morris & E.A. Eames   [Draft Revised H&C; FNA26] 1
Piperia candida Rand. Morgan & Ackerman   [FNA26, Not in H&C] 0 white-lip rein orchid
Piperia elegans (Lindl.) Rydb. ssp. elegans    [FNA26] 3 elegant rein orchid, hillside rein orchid
Piperia elongata Rydb.   [FNA26] 5 dense or dense-flower rein orchid
Piperia unalascensis (Spreng.) Rydb.   [FNA26] 5 Alaska rein orchid
Platanthera aquilonis Sheviak   [FNA26] 0 Sheviak's bog orchid, eagle rein orchid
Platanthera chorisiana (Cham.) Rchb. f.   [FNA26] 3 choriso bog orchid
Platanthera dilatata (Pursh) Lindl. ex L. C. Beck var. albiflora (Cham.) Ledeb.   [FNA26] 1 white bog orchid
Platanthera dilatata (Pursh) Lindl. ex L. C. Beck var. dilatata    [FNA26] 2 white bog orchid
Platanthera dilatata (Pursh) Lindl. ex Beck var. leucostachys (Lindl.) Luer   [FNA26] 3 white bog orchid
Platanthera huronensis (Nutt.) Lindl.   [FNA26] 7 northern green bog orchid
Platanthera obtusata (Banks ex Pursh) Lindl. ssp. obtusata    [FNA26] 3 blunt-leaf rein orchid, one-leaf rein orchid, small northern bog orchid
Platanthera orbiculata (Pursh) Lindl.   [FNA26] 2 large round-leaf orchid
Platanthera stricta Lindl.   [FNA26] 9 slender bog orchid
Platanthera transversa (Suksd.) R.M. Bateman   [Draft Revised H&C] 2 royal rein orchid
Spiranthes diluvialis Sheviak   [FNA26] 1 diluvial ladies'-tresses
Spiranthes porrifolia Lindl.   [FNA26] 1 western ladies'-tresses
Spiranthes romanzoffiana Cham.   [FNA26] 4 hooded ladies'-tresses

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