Helianthella quinquenervis (Hook.) A. Gray
Family: Asteraceae
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[Helianthus quinquenervis Hook.]
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Max Licher  
Plants (30-)50-150 cm. Cauline leaves: largest proximal to mid stems; blades usually 3- or 5-nerved, elliptic or ovate-lanceolate to lanceolate, 10-50 cm, faces sparsely hirsute or glabrous. Heads usually borne singly, ± nodding. Involucres hemispheric or broader, (25-)40-50 mm diam. Phyllaries (outer sometimes ± foliaceous) ovate to lanceolate (subequal to unequal, margins ciliate). Paleae scarious, relatively soft. Ray florets (13-)21; (corollas bright yellow) laminae 25-30(-40) mm. Disc corollas yellow. Cypselae strongly compressed, narrowly obovate (margins ciliate, faces strigose); pappi of 2 ± subulate scales plus 2-4+ shorter scales. Flowering Jun-Aug(-Oct). Moist meadows, aspen glades; 1400-3600 m; Ariz., Colo., Idaho, Mont., Nev., N.Mex., Oreg., S.Dak., Wyo.; Mexico (Chihuahua, Nuevo León). Helianthella quinquenervis grows primarily in the Rocky Mountains, Great Basin ranges, and Black Hills.

FNA 2006, Kearney and Peebles 1969, McDougall 1973
Duration: Perennial Nativity: Native Lifeform: Forb/Herb General: Herbaceous, coarse perennials, to 150 cm tall, stout, simply or few branching, herbage sparsely hirsute to glabrous, with a taproot, sometimes with a woody caudex. Leaves: Basal leaves opposite, glabrous or sparsely hirsute, lanceolate, acute, or acuminate, 3-5 nerved, acute or acuminate at the tips, sessile or borne on short petioles, cauline leaves similar, in 3-4 pairs, the largest leaves usually lower to midway up the stems. Stems usually not very leafy distally. Flowers: Heads large, showy, radiate, rays yellow, 25-30 mm long, disk flowers yellow, the disk 2-3 cm wide, receptacle pales soft and scarious, involucres 2 cm high and 4-5 cm wide, broad to hemispheric, phyllaries unequal, ciliate, lanceolate, with acute or acuminate tips, heads long-peduncled, often nodding, heads borne solitary or sometimes with a few reduced lateral heads. Fruits: Achenes 8-10 mm long, appressed pubescent on the faces, ciliate on the margins. Pappus awns slender, half as long as the achenes. Ecology: Found in mountain meadows, aspen glades, and woods, from 5,000-10,000 ft (1524-3048 m); flowering July-October. Distribution: South Dakota to Idaho, south to New Mexico, Arizona, and Mexico. Notes: The large, showy heads, yellow rays, and thin leaves are good identifiers for this species. Ethnobotany: Unknown Etymology: Helianthella is a diminutive of Helianthus, while quinquenervis means having five nerves. Synonyms: Helianthus quinuenervis Editor: LCrumbacher 2011
Helianthella quinquenervis image
Max Licher  
Helianthella quinquenervis image
Max Licher  
Helianthella quinquenervis image
Max Licher  
Helianthella quinquenervis image
Max Licher  
Helianthella quinquenervis image
Max Licher  
Helianthella quinquenervis image
Max Licher  
Helianthella quinquenervis image
Max Licher  
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Max Licher  
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Max Licher  
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Patrick Alexander  
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