Oenothera species

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Scientific Name Oenothera curtiflora (Gaura parviflora) USDA PLANTS Symbol
OECU2
Common Name Velvetweed, Velvet Butterfly-weed ITIS Taxonomic Serial No.
836004
Family Onagraceae (Evening Primrose) SEINet Reference
Description Habitat: Various soil types; dry rocky hillsides, pastures, old fields, open woodlands, waste areas, roadsides and streamsides.
Plant: Erect, annual; usually single-stemmed and unbranched below inflorescence; stems densely glandular-hairy.
Leaves: Alternate, ovate-lanceolate, 1 to 5 inches long, 1/4 to 1-3/4 inches wide, sessile; pubescent hairs; wavy margins and tips tapering to points.
Inflorescence: Densely-flowered terminal spike 2 to 20 inches long; small flowers with hairy lanceolate to linear bracts up to 1/4 inch long; 4 sepals, smooth or minutely pubescent, bent abruptly downward; 4 short, pink to rose petals 1/8-inch long; 8 stamens, anthers yellow or reddish; stigma with 4 short, yellowish lobes.
Bloom Period: March to August.
References: Gaura parviflora in "Manual of the Vascular Plants of Texas" by Correll and Johnston; Kansas Wildflowers and Grasses, and SEINet.
Texas Status
Native
Scientific Name Oenothera speciosa USDA PLANTS Symbol
OESP2
Common Name Showy Evening Primrose ITIS Taxonomic Serial No.
27415
Family Onagraceae (Evening Primrose) SEINet Reference
Description Habitat: Various soil types in ungrazed pastures and prairies, open woodlands and roadsides.
Plant: Upright to sprawling perennial spreading to form large colonies; one to several stems, branched above up to 20 inches long.
Leaves: Alternate, overall lanceolate or oblanceolate in outline, with edges cut deeply into narrow pinnate lobes; 3/4 to 3-1/2 inches long and 3/16 to 1 inch wide.
Inflorescence: Large, showy pink or rose-pink to white flowers up to 3 inches across, 4 broad petals; opening morning or evening; nodding buds become erect when open.
Bloom Period: March to July.
References: "Wildflowers of Texas" by Geyaya Ajilvsgi, "Manual of the Vascular Plants of Texas" by Correll and Johnston and Kansas Wildflowers and Grasses.
Texas Status
Native
Scientific Name Oenothera suffrutescens (Gaura coccinea) USDA PLANTS Symbol
OESU3
Common Name Scarlet Gaura, Scarlet Beeblossom ITIS Taxonomic Serial No.
836008
Family Onagraceae (Evening Primrose) SEINet Reference
Description Habitat: Sandy and calcareous soils in prairies, disturbed areas and a variety of environments; widespread in Texas.
Plant: Erect, somewhat hairy multi-stemmed perennial, up to 40 inches tall.
Leaves: Alternate, stalkless, narrow, linear to linear-oblanceolate leaves, 1/2 to 2-1/2 inches long, crowded along the stems; margins entire to somewhat dentate.
Inflorescence: Densely-flowered terminal spike 2 to 6 inches long elongating with age, often lax or nodding at the tip; small flowers about 5/8-inch across; 4 sepals less than 1/4 to 3/8-inch long; 4 short, white to pink petals 1/4-inch long becoming red to dark-red with age; 8 stamens with long white filaments and red anthers.
Bloom Period: April to July.
References: Gaura coccinea in "Manual of the Vascular Plants of Texas" by Correll and Johnston, "Wildflowers of the Texas Hill Country" by Marshall Enquist and "Wildflowers of Texas" by Geyata Ajilvsgi; SEINet.
Texas Status
Native

Click for yellow Oenothera and white Oenothera species.


© Tom Lebsack 2019