|Scientific Name||Oenothera albicaulis||USDA PLANTS Symbol||OEAL|
|Common Name||Whitest Evening Primrose, Prairie Evening Primrose||ITIS Taxonomic Serial No.||27373|
|Family||Onagraceae (Evening Primrose)||SEINet
|Description||Habitat: Dry, sandy soils in open flats and slopes.
Plant: Annual usually branching from base, with erect central stem 2 to 12 inches tall and spreading, decumbent lateral stems up to 20 inches long.
Leaves: Basal rosette leaves often fall off prior to flowering, spatulate, oblanceolate, or ovate, 2 to 4 inches long and up to 1 inch wide, with a smooth or toothed margin; stem leaves alternate, lanceolate to oblanceolate in outline, usually pinnatifid into narrow lobes, and smaller than basal leaves.
Inflorescence: Solitary white, showy flowers up to 3-1/4 inches wide opening near sunset, mature blossoms nodding; pedicels up to 1-5/8 inches long arising from leaf axils; floral tube 3/8 to 1-5/8 inches long; 4 sepals per flower, 3/8 to 1-1/4 inches long; 4 white petals fading to pink.
Bloom Period: April to June.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, "Wildflowers of Texas" by Michael Eason and SEINet.
|BONAP Distribution Map
Map Color Key
Banner photo of Lupinus ssp. by Rick Capozza, Austin TX
© Tom Lebsack 2023