Conopholis alpinaLiebm.

alpine cancer-root

WFO wfo-0000618540 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Conopholis alpina, photographed by Anders Hastings
fig. a Anders Hastings, CC BY 4.0 / 2022-05-23 / obs. 200149741
Conopholis alpina, photographed by Andrew Tree
fig. b Andrew Tree, CC BY 4.0 / obs. 198196411
Conopholis alpina, photographed by Diana Fuentes
fig. c Diana Fuentes, CC BY-SA 4.0 / obs. 202599661
Conopholis alpina, photographed by Sean Krieg
fig. d Sean Krieg, CC BY 4.0 / obs. 197932363
Conopholis alpina, photographed by Andrew Tree
fig. e Andrew Tree, CC BY 4.0 / obs. 199170920
Conopholis alpina, photographed by Leticia Jiménez Hernández
fig. f Leticia Jiménez Hernández, CC BY-SA 4.0 / obs. 146532169
Conopholis alpina, photographed by Benjamin Burgunder
fig. g Benjamin Burgunder, CC BY 4.0 / obs. 141338593
Conopholis alpina, photographed by Andrew Tree
fig. h Andrew Tree, CC BY 4.0 / obs. 194486047

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 = 838 observations

Peak flowering in Mar, from 838 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 8 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.

  • Conopholis alpina var. alpina
  • Conopholis alpina var. mexicana (A.Gray ex S.Watson) R.R.Haynes
  • Conopholis americana Endl.
  • Conopholis mexicana A.Gray ex S.Watson
  • Conopholis sylvatica Liebm.
  • Myzorrhiza xanthochroa (A.Nelson & Cockerell) Rydb.
  • Orobanche multiflora var. xanthochroa (A.Nelson & Cockerell) Munz
  • Orobanche xanthochroa A.Nelson & Cockerell

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.