Resumo

LEON DE LA LUZ, José Luis  e  MEDEL-NARVAEZ, Alfonso. A new species of Bidens (Asteraceae: Coreopsidae) from baja California Sur, Mexico. Act. Bot. Mex [online]. 2013, n.103, pp.119-126. ISSN 2448-7589.

A new taxon of Asteraceae, Bidens cabopulmensis, from the Cape Region of Baja California Sur, is described and illustrated. It occurs on coastal sand dunes. The novelty is not especially close to the other eight known species of Bidens from the geographical area and differs by its habitat, life form, and details of the heads. It shares some characteristics with the mainland species, B. cronquistii, B. hintonii, and B. triplinervia. A key to identify the nine known species of Bidens native in the Cape Region is provided.

Palavras-chave : Bidens; Cabo Pulmo; coastal dune flora; Mexico; micro-endemics.

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