I"ve been an amateur botanist since circa 1997 with a special interest in California native plants. A corollary passion of mine is birding and, like many fellow birders, I keep a Life List of all the bird species that I've observed in my lifetime. So I thought, why not also create a life list for plants I've seen in the field? In addition to California natives, I've also included a smaller list of plants that I've observed and photographed in their native habitats outside of the U.S.
Wednesday, March 20, 2019
Lupinus albifrons (Silver Bush Lupine)
3/1/19 Walker Canyon Trail, Temescal Mountains, Lake Elsinore,
Riverside County, CA
LIFE LIST NOTES:
COMMON NAME: Silver Bush Lupine
SPECIES: Lupinus albifrons
FAMILY: Fabaceae (Pea Family)
LIFE LIST DATE: 3/1/19
LOCATION: Walker Canyon Trail, Temescal Mountains, Lake Elsinore, Riverside County, CA
Leaf:, clustered near base or not, hairy; stipules 6--20 mm; petiole 1--8 cm; leaflets 6--10, 10--45 mm.
Inflorescence: 4--30 cm, flowers generally not to loosely whorled; peduncle 5--13 cm; pedicels 3--10 mm; bract 4--15 mm.
Flower: 9--16 mm; calyx upper lip 6--8 mm, deeply divided, lower 6--10 mm, entire to 3-toothed; petals violet to lavender, banner back generally hairy, spot generally yellow (to white) turning purple, keel generally unlobed near base, upper margins generally ciliate middle to tip, lower glabrous.
Fruit:3--5 cm, hairy.
Note: Variable, +- indistinct from Lupinus excubitus.