Asteraceae

Rocky Mountain aster

Ionactis stenomeres (A.Gray) Greene

Family: Asteraceae
Genus: Ionactis

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Rocky Mountain aster (Ionactis stenomeres) — FlowerPhoto: Leanne Stacy Reitan, CC0, from iNaturalist

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Common names

By language (1)

English: Rocky Mountain aster

Synonyms

Aster stenomeres A.Gray

Flowers

In flower: July (from 5 flowering iNaturalist observations worldwide)

Characteristics

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

Photos

FlowerPhoto: Leanne Stacy Reitan, CC0, from iNaturalist
Photo: Wikimedia Commons contributor, CC BY-SA 4.0, from Wikimedia Commons
Photo: Matt Berger, CC BY 4.0, from iNaturalist
Photo: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0, from Wikimedia Commons
Photo: Daniel Kennedy, CC BY 4.0, from iNaturalist
Photo: Matt Lavin, CC BY-SA 4.0, from iNaturalist
Photo: Matt Lavin, CC BY 4.0, from iNaturalist
Photo: Mark Pollock, CC BY 4.0, from iNaturalist
Photo: Matt Lavin, CC BY 4.0, from iNaturalist
Photo: Leanne Stacy Reitan, CC0, from iNaturalist

More in Ionactis

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.