EcoFlora - Pluchea

Pluchea
Family: Asteraceae Sue Carnahan	FNA Gleason & Cronquist Resources Guy L. Nesom in Flora of North America (vol. 19, 20 and 21) Annuals, perennials, subshrubs, shrubs, or trees (usually fetid-aromatic), (20-)50-200(-500) cm; taprooted or fibrous-rooted. Stems erect, simple or branched, seldom winged (see P. sagittalis), usually puberulent to tomentose and stipitate- or sessile-glandular, sometimes glabrous. Leaves cauline, alternate; petiolate or sessile; blades mostly elliptic, lanceolate, oblanceolate, oblong, obovate, or ovate, bases clasping or not, margins entire or dentate, abaxial faces mostly arachnose, puberulent, sericeous, strigose, or villous and/or stipitate- or sessile-glandular, adaxial similar or glabrate or glabrous. Heads disciform, in corymbiform or paniculiform arrays (flat-topped or ± elongate). Involucres mostly campanulate, cupulate, cylindric, hemispheric, or turbinate, 3-10(-12) mm diam. Phyllaries persistent or falling, in 3-6+ series, mostly ovate to lanceolate or linear, unequal. Receptacles flat, epaleate. Peripheral (pistillate) florets in 3-10+ series, fertile; corollas creamy white, whitish, yellowish, pinkish, lavender, purplish, or rosy. Inner (functionally staminate) florets 2-40+; corollas creamy white, whitish, yellowish, pinkish, lavender, purplish, or rosy, lobes (4-)5. Cypselae oblong-cylindric, ribs 4-8, faces strigillose and/or minutely sessile-glandular or glabrous (in the flora, only P. sericea); pappi persistent or tardily falling, of distinct or basally connate, barbellate bristles in 1 series. x = 10. As currently treated, Pluchea is a heterogeneous group of species, variable in habit (trees and shrubs to herbs) and foliar, floral, and fruit morphology. The American, primarily herbaceous, species are divided into groups (G. L. Nesom 1989): sect. Pluchea, sect. Amplectifolium G. L. Nesom, and sect. Pterocaulis G. L. Nesom. Among the woody species, segregate genera have been recognized (Tessaria Ruiz & Pavón, Berthelotia de Candolle, Eremohylema A. Nelson); boundaries among segregates have not been clearly drawn. Vascular plants of NE US and adjacent Canada Heads disciform, white to yellow or pink-purple; invol ovoid to broadly campanulate or hemispheric, its bracts firm, imbricate; receptacle flat, naked; outer fls in several series, pistillate, the filiform cor shorter than the style; central fls tubular, perfect, mainly sterile, often with undivided style; anthers filiform-tailed; achenes tiny, 4-6-angled; pappus a single series of capillary bristles; herbs (all ours) or shrubs with alternate, usually toothed lvs. 50, mostly warm reg. Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp. ©The New York Botanical Garden. All rights reserved. Used by permission.
Species within checklist: NAU-Yuma BSC 414 \|\| << 1 - 50 taxa >> Pluchea absinthioides Map not Available Pluchea adnata Map not Available Pluchea arabica Media not available Map not Available Pluchea arguta Map not Available Pluchea baccharis Map not Available Pluchea bequaertii Media not available Map not Available Pluchea bojeri Media not available Map not Available Pluchea camphorata Map not Available Pluchea carolinensis Map not Available Pluchea chingoyo Map not Available Pluchea dentex Map not Available Pluchea dioscoridis Map not Available Pluchea dodonaeifolia Media not available Map not Available Pluchea dunlopii Map not Available Pluchea foetida Map not Available Pluchea grevei Map not Available Pluchea heterophylla Media not available Map not Available Pluchea imbricata Map not Available Pluchea indica Map not Available Pluchea kelleri Media not available Map not Available Pluchea lanceolata Map not Available Pluchea laxiflora Map not Available Pluchea littoralis Media not available Map not Available Pluchea longifolia Map not Available Pluchea lucens Media not available Map not Available Pluchea lycioides Media not available Map not Available Pluchea marilandica Map not Available Pluchea mexicana Map not Available Pluchea microcephala Map not Available Pluchea nogalensis Media not available Map not Available Pluchea obovata Map not Available Pluchea odorata Map not Available Pluchea ovalis Map not Available Pluchea paniculata Map not Available Pluchea parvifolia Map not Available Pluchea polygonata Map not Available Pluchea pteropoda Map not Available Pluchea quitoc Media not available Map not Available Pluchea rosea Map not Available Pluchea rubelliflora Map not Available Pluchea sagittalis Map not Available Pluchea salicifolia Map not Available Pluchea sarcophylla Media not available Map not Available Pluchea sericea Map not Available Pluchea somaliensis Media not available Map not Available Pluchea sordida Media not available Map not Available Pluchea suaveolens Map not Available Pluchea subdecurrens Media not available Map not Available Pluchea succulenta Media not available Map not Available Pluchea tenuifolia Map not Available