Asteraceae

Viscid tansyaster

Rayjacksonia annua (Rydb.) R.L.Hartm. & M.A.Lane

Family: Asteraceae
Genus: Rayjacksonia

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Rayjacksonia annuaAsteraceae

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Common names

By language (1)

English: Viscid tansyaster

Synonyms

Haplopappus annuus (Rydb.) Cory
Haplopappus phyllocephalus var. annuus (Rydb.) Waterf.
Machaeranthera annua (Rydb.) Shinners
Machaeranthera phyllocephala var. annua (Rydb.) Shinners
Sideranthus annuus Rydb.

Characteristics

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

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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.