EcoFlora - Helianthella microcephala

Helianthella microcephala (A. Gray) A. Gray
Family: Asteraceae purpledisk helianthella, more...Small-Head Dwarf-Sunflower [Encelia microcephala A. Gray] Al Schneider	FNA Resources William A. Weber in Flora of North America (vol. 21) Plants 20-60(-80) cm. Cauline leaves: largest proximal to mid stems; blades usually 3-nerved, linear-spatulate to oblong-spatulate, 6-25 cm, faces hispidulous to scabrellous or glabrate. Heads (3 -)5-15+ in corymbiform arrays, erect. Involucres turbinate, campanulate, or hemispheric, (8-)12-15(-20+) mm diam. Phyllaries deltate-ovate to oblong (unequal to subequal, margins ciliolate, apices obtuse). Paleae chartaceous, relatively firm. Ray florets (5-)13; laminae 8-14 mm (usually little surpassing discs). Disc corollas purple to brown. Cypselae strongly compressed, ± oblanceolate (scarcely winged, faces densely strigose); pappi of 2 ± subulate scales plus 0-4 shorter scales. 2n = 30. Flowering (Jul-)Aug-Sep. Gulches, ravines, hillsides, semidesert sites, pinyon-juniper associations; 1700-2800 m; Ariz., Colo., N.Mex., Utah. Helianthella microcephala grows in the Colorado Plateau province.
Open Interactive Map Al Schneider Al Schneider Al Schneider Al Schneider Al Schneider Shelley Silva $Helianthella microcephala image$ Click to Display 100 Initial Media - - - - - View All Media