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Comparative analytical micrographs of “vassouras” (Baccharis, Asteraceae)

2016; Springer Science+Business Media; Volume: 26; Issue: 6 Linguagem: Inglês

10.1016/j.bjp.2016.05.001

1981-528X

Vanessa Barbosa Bobek, Gustavo Heiden, Camila Freitas de Oliveira, Valter Paes de Almeida, Josiane Padilha de Paula, Paulo Vítor Farago, Tomoe Nakashima, Jane Manfron Budel,

Ethnobotanical and Medicinal Plants Studies

Baccharis belongs to the Asteraceae family and comprises a number of medicinal species. Baccharis brevifolia DC., B. microdonta DC., B. pauciflosculosa DC., and B. trilobata A.S. Oliveira & Marchiori, which are popularly known in Brazil as "vassouras" ("broom"), are all found in Southern Brazil. The anatomical features of the leaf and stem were investigated by employing the usual light and scanning electron microtechniques, as a means of differentiating the taxa. The following anatomical characteristics can be considered to be diagnostic: the occurrence and type of stomata, midrib, stem and crystal shapes, and the presence of the petiole.