Phacelia cookei
Phacelia cookei is a rare species of phacelia known by the common name Cooke's phacelia. It is endemic to Siskiyou County, California, where it is known from just a few occurrences in the forest and scrub around Mount Shasta. The substrate in the area is sandy, ashy volcanic soil.
| Phacelia cookei | |
|---|---|
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Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Boraginales |
| Family: | Boraginaceae |
| Genus: | Phacelia |
| Species: | P. cookei |
| Binomial name | |
| Phacelia cookei Constance & Heckard | |
It is an annual herb growing in a small, flat mat or with a short upright stem a few centimeters high. It is blue-green in color, succulent, and lightly hairy. The oval, smooth-edged leaves are one or two centimeters long and borne on short petioles. The hairy inflorescence is a one-sided curving or coiling cyme of several tiny bell-shaped flowers. Each flower is white with lavender veining, about half a millimeter wide and no more than 2 millimeters long.
Further reading
Constance, L. & L. R. Heckard. (1970). Two new species of Phacelia (Hydrophyllaceae) from California. Brittonia 22:1 25–30.