Checklist » Papaveraceae » Eschscholzia californica ssp. californica
Last updated 3/16/2009 by David Giblin.
Eschscholzia californica Cham. ssp. californica[FNA3, HC2]
California poppy

Publication: Horae Phys. Berol. 73, plate 15.

Origin: Introduced

selected vouchers: WTU

Notes: FNA3: "Widely planted in North America and elsewhere as an ornamental, roadside, and reclamation plant, with many color forms in the horticultural trade, it often escapes but usually does not persist.

This species is highly variable (more than 90 infraspecific taxa have been described), not only among different plants and locations but also within individual plants over the course of the growing season, especially in petal size and color (see W. L. Jepson 1909-1943, vol. 1, part 7, pp. 564-569)."

References:

» Clark, C. 1978. Systematic studies of Eschscholzia (Papaveraceae). I. The origin and affinities of E. mexicana. Syst. Bot. 3: 374-385.
Synonyms & Misapplied Names:
Eschscholzia californica Cham. var. peninsularis (Greene) Munz
Eschscholzia californica Cham. var. scrocea (Benth.) Jeps.
Eschscholzia procera Greene