Sidalcea A. Gray

Primary tabs

Sidalcea A. Gray

Descripción

Erect (sometimes decumbent) annual or perennial herbs, rarely suffruticose, glabrous or stellate-pubescent. Leaves long-petiolate (at least basally), the blades orbicular in outline, variously lobed or parted (often quite variably so within an individual plant), lacking foliar nectaries; stipules broadly lanceolate. Inflorescence terminal, usually spicate or racemose, sometimes paniculate; flowers bracteate, perfect or gynodioecious; involucel absent; calyx 5-lobed, often accrescent; petals usually purple or lavender, sometimes yellowish or white, entire or erose; androecium included, the column usually stellate-hispid, the anthers disposed in two series (phalanges), the outer antipetalous, the inner antisepalous, the outer inserted relatively lower on the column; styles 5-9, the stigmatic surface introrsely decurrent. Fruits oblate, schizocarpic; mericarps 5-9, subreniform, glabrous or pubescent, smooth or variously reticulate or sulcate; seeds solitary. Base chromosome number: x = 10.A

Discusión taxonómica

Sidalcea is a genus of about twenty species from the western United States. Two species extend southward into Mexico.A

Bibliografía

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