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Asclepias californica is native to California and northern Baja California. It is a flowering perennial with thick, white, woolly stems which bend or run along the ground. The plentiful, hanging flowers are rounded structures with reflexed corollas and starlike arrays of bulbous anther
Hopkins' bioclimatic law states that in North America east of the Rockies, a 130-m (400-foot) increase in elevation, a 4° change in latitude North (444.48 km), or a 10° change in longitude East (two-thirds of a time zone) will cause a biological event to occur four days later in the spring or four days earlier in the fall. [1]
Asclepias erosa is a species of milkweed known commonly as desert milkweed. It is native to southern California, Arizona, and northern Baja California, where it is ...
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Asclepias curassavica, commonly known as tropical milkweed, [3] is a flowering plant species of the milkweed genus, Asclepias. [4] It is native to the American tropics [ 5 ] and has a pantropical distribution as an introduced species .
Asclepias cordifolia is a species of milkweed commonly called heart-leaf milkweed or purple milkweed (a common name shared with another milkweed, Asclepias purpurascens). [2] It is native to the western United States (California, Nevada, Oregon), growing between 50 and 2,000 m (160 and 6,560 ft) elevation in the northern Sierra Nevada and ...
Asclepias oenotheroides is a species of milkweed, commonly known as zizotes milkweed or side-cluster milkweed. It is native to the south-western United States and Central America. It is native to the south-western United States and Central America.
The nighttime display of pink and purple lights across the sky was mostly visible in the high desert and along Highway 2 in Angeles National Forest. Northern lights appear in L.A. County skies ...