Carex lupulinaMuhl. ex Willd.

hop sedge

WFO wfo-0000348521 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Carex lupulina, photographed by Ryan Sorrells
fig. a Ryan Sorrells, CC BY 4.0 / 2022-06-12 / obs. 205834111
Carex lupulina, photographed by Mark Apgar
fig. b Mark Apgar, CC BY 4.0 / obs. 201590145
Carex lupulina, photographed by Ryan Sorrells
fig. c Ryan Sorrells, CC BY 4.0 / obs. 205836316
Carex lupulina, photographed by Sue Ann Kendall
fig. d Sue Ann Kendall, CC BY 4.0 / obs. 197367002
Carex lupulina, photographed by Lynn Harper
fig. e Lynn Harper, CC0 1.0 / obs. 160926194
Carex lupulina, photographed by Ryan Sorrells
fig. f Ryan Sorrells, CC BY 4.0 / obs. 148646136
Carex lupulina, photographed by Loopy30
fig. g Loopy30, CC BY-SA 4.0 / obs. 144653224
Carex lupulina, photographed by Tom Lazar
fig. h Tom Lazar, CC0 1.0 / obs. 155967368

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 = 100 observations

Peak flowering in Jun, from 100 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 12 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.

  • Carex bella-villa Dewey
  • Carex canadensis Dewey
  • Carex gigantea f. bella-villa (Dewey) Farw.
  • Carex gigantea var. lupulina (Muhl. ex Willd.) Farw.
  • Carex lupulina var. albomarginata Sherff
  • Carex lupulina var. androgyna Dewey
  • Carex lupulina var. bella-villa (Dewey) L.H.Bailey
  • Carex lupulina var. longipedunculata Dudley
  • Carex lupulina var. lupulina
  • Carex lupulina var. pedunculata Dewey
  • Carex lurida L.H.Bailey
  • Carex lurida var. divergens L.H.Bailey

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.