Brassicaceae

Oldstem idahoa

Idahoa scapigera (Hook.) A.Nelson & J.F.Macbr.

Family: Brassicaceae
Genus: Idahoa

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Common names

By language (1)

English: Oldstem idahoa

Synonyms

Platyspermum scapigerum Hook.

Characteristics

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

Photos

Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons
Photo: Dean Wm. Taylor, CC BY 2.0, from Wikimedia Commons
Photo: Thayne Tuason, CC BY-SA 4.0, from Wikimedia Commons
Photo: Matt Berger, CC BY 4.0, from Wikimedia Commons
Photo: Matt Berger, CC BY 4.0, from Wikimedia Commons
Photo: Matt Berger, CC BY 4.0, from Wikimedia Commons

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.