Erigeron tenuifoliusHook.f.

WFO wfo-0000133225 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Erigeron tenuifolius, photographed by Juan Carlos Caicedo Hernández
fig. a Juan Carlos Caicedo Hernández, CC BY 4.0 / 2021-04-15 / obs. 125448809
Erigeron tenuifolius, photographed by Juan Carlos Caicedo Hernández
fig. b Juan Carlos Caicedo Hernández, CC BY 4.0 / obs. 125448458
Erigeron tenuifolius, photographed by Tristan Jobin
fig. c Tristan Jobin, CC BY 4.0 / obs. 109973610
Erigeron tenuifolius, photographed by Carrie Seltzer
fig. d Carrie Seltzer, CC BY 4.0 / obs. 32247415
Erigeron tenuifolius, photographed by John G. Phillips
fig. e John G. Phillips, CC BY 4.0 / obs. 51455294
Erigeron tenuifolius, photographed by John G. Phillips
fig. f John G. Phillips, CC BY 4.0 / obs. 49939530
Erigeron tenuifolius, photographed by John G. Phillips
fig. g John G. Phillips, CC BY 4.0 / obs. 37964955
Erigeron tenuifolius, photographed by Leonel Roget
fig. h Leonel Roget, CC BY 4.0 / obs. 29533167

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.

Where it actually grows measured, from 212 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 19.2 °C 19.9 °C 20.6 °C
Warmest month, mean daily high 24.6 °C 27.3 °C 29.5 °C
Annual rainfall 1,036 mm 1,525 mm 2,434 mm
Rainfall in the driest quarter 62 mm 97 mm 223 mm

It is not found anywhere that gets close to freezing. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 212 research-grade observations of Erigeron tenuifolius that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 5 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.

  • Darwiniothamnus tenuifolius (Hook.f.) Harling
  • Darwiniothamnus tenuifolius subsp. santacruzensis Harling
  • Darwiniothamnus tenuifolius subsp. tenuifolius
  • Darwiniothamnus tenuifolius var. tenuifolius
  • Erigeron tenuifolius subsp. tenuifolius

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 and no toxicity claim, because we do not yet have those from a source we can cite. It has no native range either: Kew's checklist does not cover this taxon.