Euphorbia cyparissiasL.

cypress spurge

WFO wfo-0000961626 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Euphorbia cyparissias, photographed by Pete Bradshaw
fig. a Pete Bradshaw, CC BY 4.0 / 2022-06-09 / obs. 204825270

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 = 3,019 observations

Flowering observations of Euphorbia cyparissias by month
MonthObservations
Jan0
Feb3
Mar187
Apr1228
May1151
Jun272
Jul81
Aug52
Sep27
Oct15
Nov2
Dec1

Peak flowering in Apr, from 3,019 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 16 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.

  • Esula cupressina Gray
  • Esula cyparissias Haw.
  • Esula minor Garsault
  • Euphorbia cyparissias var. degeneri Gaudin
  • Euphorbia cyparissias var. esuloides DC.
  • Euphorbia cyparissias var. major Boiss.
  • Euphorbia degenerata D.Dietr.
  • Euphorbia esuloides (DC.) Ten.
  • Euphorbia punctata Krock.
  • Euphorbia tyraica Klokov & Artemcz.
  • Galarhoeus cyparissias Small ex Rydb.
  • Keraselma cyparissias Raf.
  • Tithymalus acicularis Dulac
  • Tithymalus angustifolius Gilib.
  • Tithymalus cinerea Raf.
  • Tithymalus cyparissias (L.) Hill

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.