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vernonia
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Observations on stengelioid species of Vernonia
Observations on stengelioid species of Vernonia
By C. Earle Smith
Generic and subtribal classification of American Vernonieae
By Harold Ernest Robinson
Especies nuevas o criticas del genero "Vernonia" (Compositae) de la republica Argentina
Especies nuevas o criticas del genero "Vernonia" (Compositae) de la republica Argentina
By Angel L. Cabrera
Estudo taxonômico do genero Veronia schreb. (Asteraceae) no Rio Grande do Sul - Brasil
Estudo taxonômico do genero Veronia schreb. (Asteraceae) no Rio Grande do Sul - Brasil
By Nelson Ivo Matzenbacher,Sauta Iraci Mafioleti,Pontifícia Universidade Católica do Rio Grande do Sul. Museu de Ciências e Tecnologia
Typification of Vernonia tenuifolia Small and V. Jamesii Torrey & Gray (Compositae)
Typification of Vernonia tenuifolia Small and V. Jamesii Torrey & Gray (Compositae)
By David E. Boufford
Evolution and geographical distribution of the genus Vernonia in North America
Evolution and geographical distribution of the genus Vernonia in North America
By Gleason, Henry A.,New York Botanical Garden
Potential new crop, vernonia, January 1970-November 1988
Potential new crop, vernonia, January 1970-November 1988
By Rafats, Jerry.