Oenothera lavandulifolia

(Lavender-leaf Sundrops)


Oenothera lavandulifolia. Pawnee Buttes, Weld Co. 7398


Oenothera lavandulifolia. Pawnee Buttes, Weld Co. 7402


Oenothera lavandulifolia. Pawnee Buttes, Weld Co. 7404

Scientific Name Oenothera lavandulifolia (Calylophus lavandulifolius) USDA PLANTS Symbol CALA38
Common Name Lavender-leaf Sundrops ITIS Taxonomic Serial No. 517708
Family Onagraceae (Evening Primrose) SEINet
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Description Life zones and habitat: Plains to montane (4800 to 8700 ft.); dry rocky, sandy or gravelly soils in open shrublands, prairies and pinyon woodlands.
Plant: Low-growing perennial with decumbent to ascending stems, usually branched, 3 to 12 inches tall; with densely appressed hairs.
Leaves: Crowded, alternate, linear to narrowly lanceolate or elliptic, up to 2 inches long and 1/4-inch wide; margins entire; surfaces covered with appressed grayish hairs.
Inflorescence: Large yellow solitary blossoms arising from leaf axils, fading to pink or orange; trumpet-shaped corolla with 4 spreading, crinkly petals up to 2 inches across; floral tube 1 to 3+ inches long; protruding yellow disk-shaped stigma; 8 protruding yellow stamens.
Bloom Period: May to August.
References: "Flora of Colorado" by Jennifer Ackerfield, American Southwest and Kansas Wildflowers and Grasses.
BONAP Distribution Map

Map Color Key
Colorado Status:

© Tom Lebsack 2024

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County