View source for Silphium integrifolium var. integrifolium

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Jennifer A. Clevinger +
Michaux +
Ala. +, Ark. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Mich. +, Miss. +, Mo. +, Nebr. +, Okla. +, S.Dak. +, Tenn. +  and Wis. +
50–600 m +
Prairies, along roads and railroads +
Flowering mid summer–early fall. +
Fl. Bor.-Amer. +
Silphium integrifolium var. deamii +  and Silphium integrifolium var. neglectum +
Silphium integrifolium var. integrifolium +
Silphium integrifolium +
variety +