Fabaceae

American senna

Senna hebecarpa (Fernald) H.S.Irwin & Barneby

Family: Fabaceae
Genus: Senna

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American senna (Senna hebecarpa) — FlowerPhoto: Matt Schultz, CC0, from iNaturalist

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Common names

By language (2)

English: American senna, Wild senna
Japanese: アメリカセンナ

Synonyms

Cassia hebecarpa Fernald
Cassia hebecarpa var. longipila E.L.Braun
Senna hebecarpa var. longipila (E.L.Braun) C.F.Reed

Flowers

In flower: July to August (from 277 flowering iNaturalist observations worldwide)

Characteristics

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

Photos

FlowerPhoto: Matt Schultz, CC0, from iNaturalist
FlowerPhoto: Becky Dill, CC0, from iNaturalist
FlowerPhoto: pachips, CC BY 4.0, from iNaturalist
FlowerPhoto: Michael Pirrello, CC BY 4.0, from iNaturalist
FruitPhoto: Sandy Wolkenberg, CC BY 4.0, from iNaturalist
Photo: Kurt Stüber [1], CC BY-SA 3.0, from Wikimedia Commons
Photo: Lythronax246, CC BY 4.0, from iNaturalist
Photo: Fritzflohrreynolds, CC BY-SA 3.0, from Wikimedia Commons
Photo: peganum from Small Dole, England, CC BY-SA 2.0, from Wikimedia Commons
Photo: Michael Ellis, CC BY 4.0, from iNaturalist
Photo: peganum from Small Dole, England, CC BY-SA 2.0, from Wikimedia Commons
Photo: Roseanna Denton, CC0, from iNaturalist

More in Senna

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.