Monotropa unifloraL.

Ghost Pipe

WFO wfo-0000376457 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Monotropa uniflora, photographed by Jeff Clark
fig. a Jeff Clark, CC BY 4.0 / 2022-06-12 / obs. 205618672
Monotropa uniflora, photographed by Nico Carl
fig. b Nico Carl, CC BY 4.0 / obs. 205895249
Monotropa uniflora, photographed by Matt Muir
fig. c Matt Muir, CC BY 4.0 / obs. 205522595
Monotropa uniflora, photographed by Annie Weissman
fig. d Annie Weissman, CC BY 4.0 / obs. 204920006
Monotropa uniflora, photographed by Clay Gibbons
fig. e Clay Gibbons, CC BY 4.0 / obs. 205020253
Monotropa uniflora, photographed by Annie Weissman
fig. f Annie Weissman, CC BY 4.0 / obs. 204919297
Monotropa uniflora, photographed by Gus
fig. g Gus, CC BY-SA 4.0 / obs. 204472019
Monotropa uniflora, photographed by Katy Swiere
fig. h Katy Swiere, CC BY 4.0 / obs. 204698923

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.

Confused withby our own model

These are not lookalikes we guessed at. Each one is a species our identification model genuinely mistook for this plant, and how many times. The error rate is published.

Flowering n = 6,538 observations

Peak flowering in Jul, from 6,538 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 13 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.

  • Hypopitys uniflora (L.) Crantz
  • Monotropa australis Andres
  • Monotropa brittonii Small
  • Monotropa coccinea Zucc.
  • Monotropa coccinea var. nicaraguensis Lange
  • Monotropa morisoni Pers.
  • Monotropa morisoniana Michx.
  • Monotropa uniflora f. rosea Fosberg
  • Monotropa uniflora subsp. coccinea (Zucc.) Andres
  • Monotropa uniflora var. australis (Andres) Domin
  • Monotropa uniflora var. coccinea (Zucc.) Domin
  • Monotropa uniflora var. nicaraguensis Lange
  • Monotropa uniflora var. variegata Andres

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.