Oenothera grandis
(Showy Evening Primrose)
Oenothera grandis, CR 312, Llano Co. 4147
Oenothera grandis, near Llano, Llano Co. 7772
Oenothera grandis, near Llano, Llano Co. 7772
Oenothera grandis, CR 312, Llano Co. 4151
Oenothera grandis, near Llano, Llano Co. 7701
| Scientific Name | Oenothera grandis (Oenothera laciniata var. grandis) | USDA PLANTS Symbol | OEGR2 |
| Common Name | Showy Evening Primrose | ITIS Taxonomic Serial No. | 27403 |
| Family | Onagraceae (Evening Primrose) | Kansas Wildflowers & Grasses Ref. | Click Here |
| Description | Habitat: Usually sandy soils in fields, prairies, pastures and waste areas. Plant: Erect simple or decumbent much-branched annual 8 to 30 inches tall; simple or branched from base with stems up to 24 inches long; somewhat hairy foliage. Leaves: Basal leaves with long petioles, oblanceolate and 4 to 12 inches long and up to 5/8 inch wide, irregularly-toothed margins; stem leaves alternate, on short petioles, elliptic to oblanceolate, about 1/2 to 2-3/8 inches long, pinnately-cleft into rounded lobes, or sometimes wavy-edged or toothed. Inflorescence: Arising from the upper leaf axils, solitary, showy flowers up to 3 inches across, with 4 yellow petals; 8 yellow stamens and prominent yellow stigma; 4 sepals reflexed to one side beneath; floral tube 1 to 2 inches long; flower opens in the evening. Bloom Period: March to June. References: "Manual of the Vascular Plants of Texas" by Correll and Johnston and Kansas Wildflowers and Grasses. |
BONAP Distribution Map Map Color Key |
Texas Status: Native |
Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County
© Tom Lebsack 2024