Asclepias tuberosa subsp. interior Woods.
Family: Apocynaceae
butterfly milkweed,  more...
[Asclepias tuberosa subsp. terminalis Woods.,  more]
Asclepias tuberosa subsp. interior image
Sue Carnahan  
LEAVES: blades lanceolate, linear-Ianceolate or narrowly oblong, apically acute. NOTES: See also parent taxon. Chaparral, ponderosa pine, and riparian woodlands, meadows, roadsides; n & e AZ: Apache, Cochise, Coconino, Gila, Graham, Greenlee, Mohave, Navajo, Pima, Santa Cruz, Yavapai cos; 900-2450 m (3000-8000 ft); May-Sep; s Ontario; NH s to FL, w to MN, SD, UT, AZ; n Mex. Subsp. interior of c and sw N. Amer. is distinguished by its narrow leaves with obtuse to truncate bases. REFERENCES: Sundell, Eric. 1994. Asclepiadaceae. J. Ariz. - Nev. Acad. Sci. Volume 27, 169-187.
Asclepias tuberosa subsp. interior image
Thomas Van Devender  
Asclepias tuberosa subsp. interior image
Thomas Van Devender  
Asclepias tuberosa subsp. interior image
Asclepias tuberosa subsp. interior image
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