Sphaeralcea ambigua A. Gray
Descripción
Perennial subshrubs to 1 m tall, with many ascending or erect stems, usually densely stellate-pubescent. Leaf blades mostly 1.5-3.5 cm long, usually 1-2 times as long as wide, truncate to cordate, more or less ovate to usually shallowly 3-lobed, the lobes rounded, obscurely crenate, obtuse to subacute. Inflorescence racemiform, relatively few-flowered, the flowers solitary in the leaf axils or grouped at the nodes; pedicels shorter than to equaling the calyces; involucellar bracts 2-6 mm long, filiform; calyx 6-12 mm long, deeply divided, pubescent; petals 1.5-2 cm long, short-clawed, orange or salmon-pink; styles 12-16. Fruits 6-8 mm in diameter, subspherical to oblate; mericarps 12-16, 6 mm long, 2 mm wide, 2-3-seeded, more or less muticous, the ind?hiscent (reticulate) part less than a third of the whole, the lateral walls chartaceous; seeds 1.5 mm long, glabrous. Chromosome numbers: 2n = 10,20,30.A
Distribución
México (país) Nativo y no endémicoA
Tipo de vegetación
No especificadoA
Categoría IUCN
No incluidaB
Categoría NOM-059-SEMARNAT-2010
No incluidaC
Discusión taxonómica
Kearney (1935) recognized five infraspecific taxa in this species, but they are not included here, partly because these are problematical taxa that are difficult to distinguish, and partly because their distribution lies principally to the north of Mexico and thus only marginally concerns the present work. Hie interested reader is referred to Kearney (1935) and to detailed studies currently being carried out (La Duke, pers. comm.) on crossing behavior, comparative morphology, cytology, etc., which will better characterize these taxa. Only Sphaeralcea ambigua subsp. versi color Kearney (Univ. Calif. Publ. Bot. 19: 50. 1935) is based on a Mexican collection.A
Bibliografía
C. SEMARNAT: MODIFICACIÓN del Anexo Normativo III, Lista de especies en riesgo de la Norma Oficial Mexicana NOM-059-SEMARNAT-2010, Protección ambiental-Especies nativas de México de flora y fauna silvestres-Categorías de riesgo y especificaciones para su inclusión, exclusión o cambio-Lista de especies en riesgo, publicada el 30 de diciembre de 2010. – https://www.dof.gob.mx/nota_detalle.php?codigo=5578808&fecha=14/11/2019#gsc.tab=0 [accessed 2023-12-10 09:14]