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- 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)5 KB (312 words) - 21:11, 5 November 2020
- 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 the82 KB (1,737 words) - 17:24, 11 May 2021
- shastensis (W. A. Weber) W. A. Weber Phytologia 85: 20. 1999. William A. Weber Endemic Basionym: Helianthella californica var. shastensis W. A. Weber Amer. Midl3 KB (161 words) - 21:11, 5 November 2020
- 159--181. Tucker, J. M. 1952. Taxonomic interrelationships in the Quercus dumosa complex. Madroño 11: 234--250. Tucker, J. M. 1952b. Evolution of the Californian167 KB (27,143 words) - 18:24, 1 February 2019