Viola douglasii

Viola douglasii
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malpighiales
Family:	Violaceae
Genus:	Viola
Species:	V. douglasii
Binomial name
	Viola douglasii; Steud.

Viola douglasii is a species of violet known by the common name Douglas' violet, or Douglas' golden violet.[1] It is native to western North America from Oregon through California and into Baja California, where it grows in seasonally moist habitat, often on serpentine soils.[2] This rhizomatous herb produces a cluster of erect stems just a few centimeters in length to about 20 centimeters in maximum height. The leaf blades are deeply dissected into several narrow lobes or compound, made up of leaflets, and borne on long petioles. They are hairless to softly hairy in texture. A solitary flower is borne on a long, upright stem. It has five bright or deep yellow petals with brown veining and brown outer surfaces. The largest lowest petal may be over 2 centimeters in length.

External links

References

Hammond, P. C. (1983). "colonization of violets and Speyeria butterflies on the ash-pumice fields deposited by Cascadian volcanoes". Journal of Research on the Lepidoptera. ISSN 0022-4324.
Clausen, Jens (1964). "Cytotaxonomy and Distributional Ecology of Western North American Violets". Madroño. 17 (6): 173–197. ISSN 0024-9637. JSTOR 41423141.

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[1] Hammond, P. C. (1983). "colonization of violets and Speyeria butterflies on the ash-pumice fields deposited by Cascadian volcanoes". Journal of Research on the Lepidoptera. ISSN 0022-4324.

[2] Clausen, Jens (1964). "Cytotaxonomy and Distributional Ecology of Western North American Violets". Madroño. 17 (6): 173–197. ISSN 0024-9637. JSTOR 41423141.