Malvaviscus urticifolius (C. Presl) Fryxell

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Malvaviscus urticifolius (C. Presl) Fryxell

Descripción

Shrubs 2 m tall, the stems coarsely pubescent, the hairs 1-2 mm long, whitish, more or less curly. Leaf blades 6-8 cm long, 2-3 cm wide (or if lobed to 6 cm wide), mostly narrowly lanceolate (rarely wider and trilobulate), truncate, coarsely crenate or serrate, acute, palmately 5-nerved, glabrate above, with a few scattered stellate hairs beneath (mostly 4-armed, 1 mm long) or with simple hairs on main veins; petioles mostly 1/4 the length of the blades; with pubescence like stem; stipules ca. 3 mm long, subulate. Flowers solitary in the leaf axils or aggregated apically; pedicels 1.5-3 cm long, exceeding the subtending petioles; involucellar bracts ca. 8-9, 10-12 (-14) mm long, 0.5-1.5 mm wide, connate at very base but essentially distinct, lanceolate (or slightly spatulate), 1-nerved, ciliate; calyx 12-15 mm long, yellowish, prominently ciliate on margins and veins (hairs 1.5-2 mm); petals 3.5-5 cm long, white, sparsely pubescent (subglabrous); staminal column exserted, slender, twisted, pallid, glabrous, the filaments 1-2 mm long, the anthers few (ca. 15), pallid (?); styles exceeding the androecium, free for distal 3-4 mm, pallid, somewhat pubescent, divergent, the stigmas villous, pallid. “The fruit is very rare” (Hinton 7912); “fruiting specimens very difficult to find” (Hinton 5057). Chromosome number unknown.A

Forma de crecimiento

Arbusto

Forma de vida

Terrestre

Nutrición

Autotrófica

Distribución

México (país) EndémicoA

Tipo de vegetación

No especificadoA

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, P. A. 1988: Malvaceae of Mexico. – Syst. Bot. Monogr. 25: 1-522
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]