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Showy evening primrose

Also known as: White evening primrose

Oenothera speciosa Nutt.

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Showy evening primrose
Showy evening primrose
Showy evening primrose
Showy evening primrose
Showy evening primrose
Showy evening primrose
Showy evening primrose leaves
Showy evening primrose
Showy evening primrose
Showy evening primrose
Showy evening primrose
Showy evening primrose leaves
Showy evening primrose

Morphology

Stem
Erect or sprawling, 1 to several, simple or branched above, densely to sparsely short-hairy.
Leaves
Alternate, simple, short-stalked to sessile above, elliptic-lanceolate or oblong-lanceolate; 1 to 4 inches long, .25 to 1 inch wide, short-hairy; margins wavy or slightly toothed, sometimes deeply lobed near base; tips tapering-pointed; upper leaves reduced to linear-lanceolate bracts.
Inflorescence
1-flowered in upper leaf axils.
Flower
Showy, 1.5 to 3.5 inches across; sepals 4, lanceolate, tips united, bent toward 1 side; petals 4, 1 to 1.5 inches long, white, often yellowish at base, fading pinkish; stamens 8, nearly as long as petals; style longer than stamens, stigma with 4 linear lobes, cross-shaped.
Fruit
Capsules, narrowly football-shaped, about .5 inch long, 4-ribbed, pubescent; seeds many, small, brown.

Ecology

Habitat
Dry, rocky soils of prairies, roadsides, open woodlands, and hillsides.
Distribution
East two thirds of Kansas.

Additional Notes

Comments

The flowers open in the evening or on overcast days, remain open through the morning but closing during the heat of the day. Hawk moths, hummingbirds, and bees pollinate the flowers.

Quick Facts
Plant Type
Wildflower
Family
Onagraceae - Evening Primrose Family
Life Span
Perennial
Height
4-20 inches
Last Updated
2021-08-27
Color Groups
Pink, Red & Orange Wildflowers
White, Green & Greenish White Wildflowers
Flowering Period
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Blooms: May, June