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Bidens aristosa (Michx.) Britton

Long-bracted tickseed sunflower

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassAsteridaeA large class that encompasses asters
OrderAsteralesFlowering plants with a central disk flower and surrounding petals, like daisies
FamilyAsteraceaeThe aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers
GenusBidensFrom Latin bis, “twice,” and dens, “tooth,” for the pair of bristles on the achenes

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Bidens aristosa (Michx.) Britton var. fritcheyi Fernald

Bidens aristosa (Michx.) Britton var. mutica (A. Gray) Gattinger

Bidens aristosa (Michx.) Britton var. retrorsa (Sherff) Wunderlin

Bidens involucrata (Nutt.) Britton

Bidens polylepis S.F. Blake

Bidens polylepis S.F. Blake var. retrorsa Sherff


Bidens aristosa description by Thomas H. Kent, last updated 25 May 2020.

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Bidens aristosa (long-bracted tickseed sunflower)

7/29/2023 · By Jacquelyn Boyt


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