Mexico. Species 9 (6 in the flora). Weber, W. A. 1948. The genus Helianthella in Oregon. Madroño 9: 186–189. Weber, W. A. 1952. The genus Helianthella (Compositae)
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dorsal tuft of crinkled or pleated hairs, the web, below the lemma keel. In a few species, additional webs may be present below the marginal veins. In the
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shastensis (W. A. Weber) W. A. Weber Phytologia 85: 20. 1999. William A. Weber Endemic Basionym: Helianthella californica var. shastensis W. A. Weber Amer. Midl
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159--181. Tucker, J. M. 1952. Taxonomic interrelationships in the Quercus dumosa complex. Madroño 11: 234--250. Tucker, J. M. 1952b. Evolution of the Californian
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