EcoFlora - Perityle

Perityle
Family: Asteraceae Ries Lindley	FNA Resources Sharon C. Yarborough, A. Michael Powell in Flora of North America (vol. 21) Annuals, perennials, subshrubs, or shrubs, 2-45(-75) cm (glabrous or hairy, often gland-dotted). Stems erect to pendent. Leaves mostly cauline; often proximally opposite, distally alternate; petiolate or sessile; blades usually 3-lobed, ultimate margins entire, toothed, or lobed. Heads radiate or discoid, borne singly or in corymbiform arrays. Involucres campanulate, cylindric, funnelform, or hemispheric, 3-15 mm diam. Phyllaries persistent, 5-28 in (1-)2(-3) series (distinct, linear to ovate, equal or subequal, flat or keeled, glabrous or hairy, apices obtuse, acute, or attenuate). Receptacles flat or convex, pitted, epaleate. Ray florets 0, or (1-)3-18, pistillate, fertile; corollas cream, yellow, or white (showy or rudimentary). Disc florets 5-200, bisexual, fertile; corollas cream, yellow, or white, tubes shorter than or nearly equal to cylindric, funnelform, or campanulate throats, lobes 4, ± deltate (acute; stamens 4; style branches flattened, linear, usually tapering to fine, minutely hairy tips). Cypselae (black) flattened to subcylindric, linear to oblanceolate or obovate (margins ± calloused and glabrous, hairy, or ciliate, faces usually hairy, sometimes glabrous); pappi 0, or persistent or falling, of 1-35 bristles plus callous crowns or hyaline scales. x = 17, 19. Most species of Perityle are rock-dwelling subshrubs exhibiting geographic speciation; most are found in the eroded mountain and basin region of the southwestern United States.
<< 1 - 50 taxa >> Perityle aglossa Map not Available Perityle ajoensis Map not Available Perityle alamosana Map not Available Perityle ambrosiifolia Map not Available Perityle angustifolia Map not Available Perityle aurea Map not Available Perityle batopilensis Map not Available Perityle bisetosa Map not Available Perityle californica Map not Available Perityle canescens Map not Available Perityle carmenensis $Media resource of Perityle carmenensis$ Map not Available Perityle castillonii Map not Available Perityle cernua Map not Available Perityle ciliata Map not Available Perityle cinerea Map not Available Perityle coahuilensis Map not Available Perityle cochisensis Map not Available Perityle congesta Map not Available Perityle cordifolia Map not Available Perityle coronopifolia Map not Available Perityle crassifolia Map not Available Perityle cuneata Map not Available Perityle deltoidea Map not Available Perityle dissecta Map not Available Perityle emoryi Map not Available Perityle feddemae Map not Available Perityle fosteri $Media resource of Perityle fosteri$ Map not Available Perityle gentryi Map not Available Perityle gilensis Map not Available Perityle glaucescens $Media resource of Perityle glaucescens$ Map not Available Perityle gracilis Map not Available Perityle grandifolia Map not Available Perityle greenei Map not Available Perityle halimifolia Media not available Map not Available Perityle harkerae Map not Available Perityle hofmeisteria Map not Available Perityle huecoensis Map not Available Perityle incana Map not Available Perityle incompta Map not Available Perityle intricata Map not Available Perityle inyoensis Map not Available Perityle jaliscana Map not Available Perityle lemmonii Map not Available Perityle leptoglossa Map not Available Perityle lindheimeri Map not Available Perityle lineariloba Map not Available Perityle lloydii Map not Available Perityle lobata Map not Available Perityle megalocephala Map not Available Perityle microcephala Map not Available