Orobanchaceae
Yaupon blacksenna
Seymeria cassioides
- Family
- Orobanchaceae
- Genus
- Seymeria
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Common names
By language (1)
- English
- Yaupon blacksenna, Yaupon black senna
Synonyms
- Afzelia cassioides J.F.Gmel.
- Gerardia afzelia Michx.
- Gerardia cassioides Pers.
- Seymeria tenuifolia Pursh
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Annual
- In the US and Canada
- Lower 48 states: native
Photos
Photo: Ryan Watson, CC BY 4.0, from Wikimedia Commons 
Photo: Alex Abair, CC BY 4.0, from Wikimedia Commons 
Photo: Alex Abair, CC BY 4.0, from Wikimedia Commons 
Photo: Alex Abair, CC BY 4.0, from Wikimedia Commons 
Photo: Alex Abair, CC BY 4.0, from Wikimedia Commons
More in Seymeria
- Piedmont blacksennaSeymeria pectinataOrobanchaceae
- Eagle Pass blacksennaSeymeria bipinnatisectaOrobanchaceae
- Seymeria coahuilanaOrobanchaceae
- Seymeria cualanaOrobanchaceae
- Seymeria decurvaOrobanchaceae
- Seymeria deflexaOrobanchaceae
- Curved-fruit blacksennaSeymeria falcataOrobanchaceae
- Seymeria gypsophilaOrobanchaceae
- Seymeria integrifoliaOrobanchaceae
- Seymeria pailanaOrobanchaceae
- Seymeria pennelliiOrobanchaceae
- Limpia blacksennaSeymeria scabraOrobanchaceae
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.