Compositae source details
(1916). Proc. Amer. Acad. Arts 51: 537. 1916
326270
1916
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Date
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Eupatorium urticaefolium var. angustatum (A.Gray) B.L.Rob. (original description)
Eupatorium urticifolium var. angustatum (A.Gray) B.L.Rob. accepted as Ageratina altissima var. altissima (L.) R.M.King & H.Rob. (original description)
Eupatorium urticifolium var. angustatum (A.Gray) B.L.Rob. accepted as Ageratina altissima var. altissima (L.) R.M.King & H.Rob. (original description)
