Sidastrum burrerense Fryxell, León de la Luz & M.Domínguez

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Sidastrum burrerense Fryxell, León de la Luz & M.Domínguez

Descripción

Perennial subshrub, the stems terete, sometimes reddish, very sparsely and minutely puberulent becoming glabrescent. Leaf blades narrowly ovate to lanceolate, basally truncate or subcordate, with a weak tendency to be hastately lobed, palmately 7-nerved, coarsely and irregularly crenate-serrate, gradually acuminate, 4-9 cm long, 1.5-4.5 cm wide, sparsely and inconspicuously pubescent, the upper surface with simple hairs 0.3 mm long and a few stellate hairs, the lower surface with stellate hairs 0.2 mm in diameter dispersed uniformly; petioles 0.5-4 cm long with pubescence similar to that of the young stems and sometimes with a few simple hairs to 1 mm long; stipules filiform, 7-8 mm long. Flowers solitary in the leaf axils or on lateral branches, forming a terminal paniculiform inflorescence, more or less exceeding the leaves; pedicels slender (almost capillary), 2-3 cm long, glabrous; calyx 44.5 mm long, minutely stellate-pubescent, ecostate, divided more or less to the middle; petals 5-6 mm long, reflexed, lavender or purplish; staminal column 4 mm long, sometimes purplish, with prominent white hairs 0.3 mm long; filaments apical, few (5-10), 1.5 mm long, the anthers whitish; styles 6-7, exceeding the androecium, the stigmas capitellate. Fruits oblate, 4.5-5 mm in diameter; mericarps 6-7, ca. 3 mm long, finely reticulate in the basal part, with a small apical rostrum, smooth; seeds solitary, ca. 2 mm long.A

Forma de crecimiento

Arbusto

Forma de vida

Terrestre

Nutrición

Autotrófica

Distribución

México (país) EndémicoA

Elevación

550 – 620 mA

Tipo de vegetación

Selva bajaA

Categoría IUCN

No incluidaB

Categoría NOM-059-SEMARNAT-2010

No incluidaC

Estatus del taxón

(A) Como definida actualmente, probablemente una entidad natural (monofilética)

Bibliografía

A. Fryxell, León de la Luz & M.Domínguez 1997: – Contr. Univ. Michigan Herb. 21
B. IUCN 2022: The IUCN Red List of Threatened Species. Versión 2022-2
C. SEMARNAT 2019: MODIFICACIÓN del Anexo Normativo III, Lista de especies en riesgo de la Norma Oficial Mexicana NOM-059-SEMARNAT-2010: 101 pp. – https://www.dof.gob.mx/nota_detalle.php?codigo=5578808&fecha=14/11/2019#gsc.tab=0 [accessed 2023-05-04 06:16]