SimplePlant

Asteraceae

Wireweed

Rigiopappus leptocladus A.Gray

Family
Asteraceae
Genus
Rigiopappus

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Wireweed: This annual is common in the sagebrush steppe of this area and is uncommon in adjacent roadsides and other disturbed areas.
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons

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Common names

By language (2)
English
Wireweed
Portuguese
Rigiopappus

Synonyms

  • Rigiopappus leptocladus var. leptocladus
  • Rigiopappus longiaristatus Rydb.

Characteristics

Growth habit
Forb/herb
Lifespan
Annual
In the US and Canada
Lower 48 states: native

Photos

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.