Rudbeckia hirta

Rudbeckia hirta
	Rudbeckia hirta flowerhead
Conservation status
	; Secure (NatureServe)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Rudbeckia
Species:	R. hirta
Binomial name
	Rudbeckia hirta; L.
Synonyms
	List Brauneria serotina (Sweet) Bergmans; Centrocarpha gracilis (Nutt.) D.Don ex G.Don; Centrocarpha hirta (L.) D.Don ex G.Don; Coreopsis hirta (L.) Raf.; Helianthus hirtus (L.) E.H.L.Krause; Obeliscotheca flava (T.V.Moore) Nieuwl. & Lunell; Rudbeckia amplectens T.V.Moore; Rudbeckia bicolor Nutt.; Rudbeckia brittonii Small; Rudbeckia discolor Elliott; Rudbeckia divergens T.V.Moore; Rudbeckia flava T.V.Moore; Rudbeckia flexuosa T.V.Moore; Rudbeckia floridana T.V.Moore; Rudbeckia floridana var. angustifolia T.V.Moore; Rudbeckia gracilis Nutt.; Rudbeckia hirta var. annulata Clute; Rudbeckia hirta var. bicolor Clute; Rudbeckia hirta var. brittonii (Small) Fernald; Rudbeckia hirta var. corymbifera Fernald; Rudbeckia hirta f. dichrona Clute; Rudbeckia hirta f. flavescens Clute; Rudbeckia hirta f. gigantea Clute; Rudbeckia hirta f. homochroma Steyerm.; Rudbeckia hirta var. lanceolata (Bisch.) Core; Rudbeckia hirta var. major Hook.; Rudbeckia hirta var. monticola (Small) Fernald; Rudbeckia hirta f. pleniflora Moldenke; Rudbeckia hirta var. rubra Clute; Rudbeckia hirta var. sericea (T.V.Moore) Fernald; Rudbeckia hirta var. serotina (Nutt.) Core; Rudbeckia hirta var. tubuliformis Burnham; Rudbeckia hirta f. viridiflora Burnham; Rudbeckia longipes T.V.Moore; Rudbeckia monticola Small; Rudbeckia sericea T.V.Moore; Rudbeckia serotina Nutt.; Rudbeckia serotina f. annulata (Clute) Fernald & B.G.Schub.; Rudbeckia serotina var. corymbifera (Fernald) Fernald & B.G.Schub.; Rudbeckia serotina f. dichrona (Clute) Moldenke; Rudbeckia serotina f. flavescens (Clute) Moldenke; Rudbeckia serotina f. frondosa (Clute) Moldenke; Rudbeckia serotina f. gigantea (Clute) Moldenke; Rudbeckia serotina f. homochroma (Steyerm.) Fernald & B.G.Schub.; Rudbeckia serotina var. lanceolata (Bisch.) Fernald & B.G.Schub.; Rudbeckia serotina f. novae-caesareae Oswald; Rudbeckia serotina f. pleniflora (Moldenke) Fernald & B.G.Schub.; Rudbeckia serotina f. pulcherrima (Farw.) Fernald & B.G.Schub.; Rudbeckia serotina f. rubra (Clute) Fernald & B.G.Schub.; Rudbeckia serotina var. sericea (T.V.Moore) Fernald & B.G.Schub.; Rudbeckia serotina f. tubuliformis (Burnham) Fernald & B.G.Schub.; Rudbeckia serotina f. viridiflora (Burnham) Fernald & B.G.Schub.; Rudbeckia strigosa Nutt.; ;

Rudbeckia hirta, commonly called black-eyed Susan, is a North American flowering plant in the family Asteraceae, native to Eastern and Central North America and naturalized in the Western part of the continent as well as in China. It has now been found in all 10 Canadian Provinces and all 48 of the states in the contiguous United States.

Rudbeckia hirta is the state flower of Maryland.

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