EcoFlora - Rheum

Rheum
Family: Polygonaceae Paul Rothrock	FNA Resources Craig C. Freeman in Flora of North America (vol. 5) Herbs, perennial; roots fleshy. Stems erect, glabrous or pubescent. Leaves deciduous, mostly basal, alternate, petiolate; ocrea persistent or deciduous, chartaceous; blade cordate-ovate to orbiculate or reniform, margins entire, undulate. Inflorescences terminal, paniclelike, pedunculate. Pedicels present. Flowers bisexual, 1-10 per ocreate fascicle, base stipelike; perianth nonaccrescent in fruit, whitish green or pinkish green, campanulate, glabrous; tepals 6, distinct, sepaloid, dimorphic, outer 3 narrower than inner 3; stamens (6-)9; filaments distinct, free, glabrous; anthers yellow or pinkish, elliptic; styles 3, erect or deflexed, distinct; stigmas capitate. Achenes exserted, dark brown, winged, 3-gonous, glabrous. Seeds: embryo straight or curved. x = 11.
Species within inventory project: Arizona Flora Rheum australe Map not Available Rheum compactum Map not Available Rheum fedtschenkoi Media not available Map not Available Rheum maximowiczii Media not available Map not Available Rheum moorcroftianum Map not Available Rheum officinale Media not available Map not Available Rheum palmatum Map not Available Rheum rhabarbarum Map not Available Rheum rhaponticum Map not Available Rheum rhomboideum Map not Available Rheum ribes Media not available Map not Available Rheum spiciforme Map not Available Rheum tanguticum Media not available Map not Available Rheum tataricum Media not available Map not Available Rheum undulatum Map not Available Rheum webbianum Map not Available Rheum wittrockii Media not available Map not Available Rheum × hybridum Map not Available