A new variety of Senna birostris (Leguminosae, Caesalpinioideae) from Argentina

Cecilia Laporta; Ramón A. Palacios; María Pía Mom

doi:10.1663/0007-196X(2006)58[66:ANVOSB]2.0.CO;2

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Cecilia Laporta,¹ Ramón A. Palacios,^2,3 María Pía Mom^2,4

¹Applied Botany, Plant Physiology and Plant Anatomy, Center of Environmental Research, UFT (Umweltforschung und Technologie), University of Bremen, Leobener Strasse, P.O. Box 33 04 40, Bremen, D 28334, Germany; la-porta@uni-bremen.de
²Facultad Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón II, 4 piso, Lab. Plantas Vasculares, Buenos Aires, C1428EHA, Argentina
³palacios@bg.fcen.uba.ar
⁴mpmom@bg.fcen.uba.ar

Abstract

Senna birostris previously included seven varieties distributed mostly above 2000 m, in the Andes, between the equator and 33° S. According to Irwin & Barneby, Senna birostris var. hookeriana was the only variety in Argentina, distributed from the Jujuy province to the San Luis province. New observations led us to identify two distinct entities that have gone under this taxon. The new variety, Senna birostris var. jallaguensis, is described from Argentina and illustrated herein and is compared to Senna birostris var. hookeriana s.str.

Citation Download Citation

Cecilia Laporta, Ramón A. Palacios, and María Pía Mom "A new variety of Senna birostris (Leguminosae, Caesalpinioideae) from Argentina," Brittonia 58(1), 66-73, (1 March 2006). https://doi.org/10.1663/0007-196X(2006)58[66:ANVOSB]2.0.CO;2

Published: 1 March 2006