Authors

David J. Keil, California Polytechnic State University, San Luis Obispo
Mark A. Elvin, United States Fish and Wildlife Service, Ventura, California

Helianthus inexpectatus (Asteraceae), a Tetraploid Perennial New Species from Southern California

DOI

10.5642/aliso.20102801.05

First Page

59

Last Page

62

Abstract

Helianthus inexpectatus is described as a new species from the Newhall Ranch of northern Los Angeles County, California. It is a tetraploid (2n = 68) perennial that is morphologically similar to--—and intermediate in some characters between--—the diploid H. nuttallii and the hexaploid H. californicus.

Recommended Citation

Keil, David J. and Elvin, Mark A. (2010) "Helianthus inexpectatus (Asteraceae), a Tetraploid Perennial New Species from Southern California," Aliso: A Journal of Systematic and Floristic Botany: Vol. 28: Iss. 1, Article 5.
Available at: https://scholarship.claremont.edu/aliso/vol28/iss1/5