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AGAVE AND YUCCA | CACTI | WILDFLOWERS

Oenothera Kunthiana, Kunth's Evening Primrose


Plants > Wildflowers > Onagraceae > Oenothera Kunthiana
Kunth's Evening Primrose; Yellow stamens and a branched, greenish style - oenothera kunthiana, Ward Spring Trail, Big Bend National Park, Texas
Yellow stamens and a branched, greenish style - oenothera kunthiana, Ward Spring Trail, Big Bend National Park, Texas
Common name:
Kunth's evening primrose
Family:
Evening Primrose (Onagraceae)
Scientific name:
Oenothera kunthiana
Main flower color:
White
Range:
Southeast Arizona, south and west Texas
Height:
Up to 16 inches
Habitat:
Open woodland, hillsides, washes
Leaves:
Alternate, ovate to obovate, up to 3.5 inches long and one inch wide
Season:
March to May
Pintrest
Stems of oenothera kunthiana are around one foot long, prostrate or growing at an angle. Stems have a covering of short, appressed hairs, most densely towards the top. Leaves are initially produced as a basal rosette, later appearing on the stems; plants are perennials, generally not blooming during the first season. Leaves may be lined by shallow teeth, or larger lobes.

Flowers form singly, at the top of the stem and at the upper leaf nodes. The four petals are colored white, becoming pink, between 1 and 1.5 inches long, and crossed by a few lengthwise veins. At the center are eight stamens with pale green filaments and yellow anthers attached at their midpoints, and a style topped by a four-pronged stigma. The style is about the same length as the stamens, sometimes slightly longer.




Four rounded petals
Four rounded petals
Kunth's Evening Primrose
Stem and leaves
Opening flower
Opening flower
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