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Beaucarnea

( Asparagaceae Genera )

Beaucarnea Calibanus Filebeaucarnea Species

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Beaucarnea is a genus of native plant to Mexico and Central America. In the APG III classification system, it is placed in the family Asparagaceae, subfamily Convallarioideae (formerly the family Ruscaceae). Beaucarnea is sometimes treated as a synonym of the genus Nolina, with the species being then transferred to that genus. However, recent research shows that Beaucarnea should be treated as an independent genus.

The species are small tropics xerophytic growing to 6–10 m tall, with a trunk 20–40 cm diameter with a flared base; young plants are single-stemmed, branching only after flowering. The leaf are evergreen, linear, strap-shaped, 0.5-1.8 m long and 1.5–2 cm broad, leathery in texture, with a finely Serration margin. The are produced only on old trees, forming on large 75–110 cm long, the individual flowers numerous but very small (1.5 mm diameter), greenish-white, with six .

Calibanus

The now defunct genus Calibanus was first formally described in 1906 by Joseph Nelson Rose, with Calibanus including two species. More recent research using molecular (phylogenetic) and morphological findings demonstrated that both former Calibanus species were closely related to Beaucarnea species, leading to both former Calibanus species being transferred to the genus Beaucarnea.

The affected species are:

Beaucarnea glassiana (L.Hern. & Zamudio) V.Rojas-Piña ; formally Calibanus glassianus L.Hern. & Zamudio
Beaucarnea hookeri (Lem.) Trel.; formerly Calibanus hookeri (Lem.) Trel.