Artemisia ludovicianaNutt.

Silver Wormwood

WFO wfo-0000003410 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Artemisia ludoviciana, photographed by Mary Krieger
fig. a Mary Krieger, CC BY 4.0 / 2022-05-29 / obs. 201995048
Artemisia ludoviciana, photographed by Annika Lindqvist
fig. b Annika Lindqvist, CC BY 4.0 / obs. 194937117
Artemisia ludoviciana, photographed by Mary Krieger
fig. c Mary Krieger, CC BY 4.0 / obs. 195308089
Artemisia ludoviciana, photographed by Mary Krieger
fig. d Mary Krieger, CC BY 4.0 / obs. 201219501
Artemisia ludoviciana, photographed by Mary Krieger
fig. e Mary Krieger, CC BY 4.0 / obs. 194100151
Artemisia ludoviciana, photographed by Shane Johnson
fig. f Shane Johnson, CC0 1.0 / obs. 190335665
Artemisia ludoviciana, photographed by Shane Johnson
fig. g Shane Johnson, CC0 1.0 / obs. 190339364
Artemisia ludoviciana, photographed by Craig Martin
fig. h Craig Martin, CC0 1.0 / obs. 190734286

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 = 217 observations

Peak flowering in Aug, from 217 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 77 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.

  • Artemisia albula Wooton
  • Artemisia arachnoidea E.Sheld.
  • Artemisia atomifera Piper
  • Artemisia brittonii Rydb.
  • Artemisia candicans Rydb.
  • Artemisia cuneata Rydb.
  • Artemisia cuneifolia Scheele
  • Artemisia discolor var. incompta (Nutt.) A.Gray
  • Artemisia diversifolia Rydb.
  • Artemisia ghiesbreghtii Rydb.
  • Artemisia gnaphalodes Nutt.
  • Artemisia gnaphalodes var. diversifolia A.Nelson
  • Artemisia gnaphalodes var. gnaphalodes
  • Artemisia gracilenta A.Nelson
  • Artemisia herriotii Rydb.
  • Artemisia incompta Nutt.
  • Artemisia incompta var. incompta
  • Artemisia integrifolia var. integrifolia
  • Artemisia latiloba Rydb.
  • Artemisia lindheimeriana Scheele
  • Artemisia lindleyana Besser
  • Artemisia lindleyana var. brevifolia Besser
  • Artemisia lindleyana var. coronopus Besser
  • Artemisia lindleyana var. legitima Besser

and 53 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.