Platanthera dilatata(Pursh) Lindl. ex L.C.Beck

white bog orchid

WFO wfo-0000274419 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Platanthera dilatata, photographed by Tom Field
fig. a Tom Field, CC BY 4.0 / 2021-08-16 / obs. 162001164
Platanthera dilatata, photographed by Peter Abrahamsen
fig. b Peter Abrahamsen, CC BY 4.0 / obs. 150371290
Platanthera dilatata, photographed by Ashwin Srinivasan
fig. c Ashwin Srinivasan, CC BY 4.0 / obs. 146752043
Platanthera dilatata, photographed by Drew Meyer
fig. d Drew Meyer, CC0 1.0 / obs. 145774351
Platanthera dilatata, photographed by Drew Meyer
fig. e Drew Meyer, CC0 1.0 / obs. 145774074
Platanthera dilatata, photographed by Drew Meyer
fig. f Drew Meyer, CC0 1.0 / obs. 145769351
Platanthera dilatata, photographed by Randal
fig. g Randal, CC0 1.0 / obs. 149186985
Platanthera dilatata, photographed by Drew Meyer
fig. h Drew Meyer, CC0 1.0 / obs. 145770660

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Flowering n = 1,743 observations

Peak flowering in Jul, from 1,743 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 39 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Habenaria borealis var. albiflora Cham.
  • Habenaria dilatata (Pursh) Hook.
  • Habenaria dilatata var. albiflora (Cham.) Correll
  • Habenaria dilatata var. leucostachys (Lindl.) Ames
  • Habenaria flagellans S.Watson
  • Habenaria graminifolia (Rydb.) J.K.Henry
  • Habenaria leptoceratitis J.K.Henry
  • Habenaria leucostachys (Lindl.) S.Watson
  • Habenaria leucostachys var. robusta (Rydb.) J.K.Henry
  • Habenaria leucostachys var. virida Jeps.
  • Habenaria pedicellata S.Watson
  • Limnorchis dilatata (Pursh) Rydb.
  • Limnorchis dilatata subsp. albiflora (Cham.) Á.Löve & W.Simon
  • Limnorchis dilatata var. albiflora (Cham.) Efimov
  • Limnorchis dilatata var. leucostachys (Lindl.) Efimov
  • Limnorchis dilatata var. linearifolia Rydb.
  • Limnorchis foliosa Rydb.
  • Limnorchis fragrans Rydb.
  • Limnorchis graminifolia Rydb.
  • Limnorchis leptoceratitis Rydb.
  • Limnorchis leucostachys (Lindl.) Rydb.
  • Limnorchis leucostachys subsp. robusta (Rydb.) Piper & Beattie
  • Limnorchis leucostachys var. robusta Rydb.
  • Orchis agastachys Fisch. ex Lindl.

and 15 more.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.

We publish what we can source and we say so when we cannot. This page has no care advice, no toxicity claim and no native range, because we do not yet have those from a source we can cite.