Holcus lanatusL.

Yorkshire fog

WFO wfo-0000874509 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Holcus lanatus, photographed by Juraj Ahel
fig. a Juraj Ahel, CC BY 4.0 / 2022-06-11 / obs. 205438259
Holcus lanatus, photographed by Charlie Farrell
fig. b Charlie Farrell, CC0 1.0 / obs. 204685873
Holcus lanatus, photographed by Yann Kemper
fig. c Yann Kemper, CC0 1.0 / obs. 203170988
Holcus lanatus, photographed by Kevin Faccenda
fig. d Kevin Faccenda, CC BY 4.0 / obs. 204044165
Holcus lanatus, photographed by Pavel Kacl
fig. e Pavel Kacl, CC BY 4.0 / obs. 203631714
Holcus lanatus, photographed by Yann Kemper
fig. f Yann Kemper, CC0 1.0 / obs. 203171004
Holcus lanatus, photographed by Daniel Cahen
fig. g Daniel Cahen, CC BY 4.0 / obs. 202827305
Holcus lanatus, photographed by David Lazarus
fig. h David Lazarus, CC0 1.0 / obs. 203136554

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 = 1,158 observations

Peak flowering in Jun, from 1,158 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 37 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.

  • Aira holcus-lanatus Vill.
  • Avena lanata (L.) Cav.
  • Avena lanata (L.) Koeler
  • Avena pallida Salisb.
  • Ginannia lanata (L.) F.T.Hubb.
  • Ginannia pubescens Bubani
  • Holcus aestivalis Jord. & Fourr.
  • Holcus argenteus C.Agardh ex Roem. & Schult.
  • Holcus glaucus Willk.
  • Holcus grurnosus Sennen
  • Holcus intermedius Krock.
  • Holcus lanatus f. albovirens (Junge) Beetle
  • Holcus lanatus f. viviparus Cheshm.
  • Holcus lanatus subsp. argenteus (C.Agardh ex Roem. & Schult.) K.Richt.
  • Holcus lanatus subsp. glaucus (Willk.) K.Richt.
  • Holcus lanatus subsp. tuberosus (Salzm. ex Trin.) M.Seq. & Castrov.
  • Holcus lanatus subsp. vaginatus (Willk. ex Pérez Lara) M.Seq. & Castrov.
  • Holcus lanatus unranked albovariegatus Jacob-Makoy
  • Holcus lanatus var. albovirens Junge
  • Holcus lanatus var. altissimus Coss. & Durieu
  • Holcus lanatus var. biaristatus J.T.Jansen & Wacht.
  • Holcus lanatus var. ciliatus Beck
  • Holcus lanatus var. coloratus Rchb.
  • Holcus lanatus var. glabrescens Zobel

and 13 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.