Oenothera linifolia
sand-barrens sundrops, threadleaf sundrop, threadleaf evening-primrose, threadleaf evening primrose, three leaved sundrops
Family
Onagraceae
Leaf Arrangement
alternate
Leaf Attachment
subsessile
Leaf Margin
entire
Leaf Type
simple
Leaf Shape
elliptic, obovate, ovate
Growth Form
forb
Flower Color
yellow
Flower Petals
4
Flower Month
April - July
Height (meters)
0.1 - 0.5
Milky Sap
No
Armed/Unarmed
Unarmed
Origin
native
Lifespan
annual
Growing Season
Cool season
Prairie Coefficient of Conservatism
6
Cultural Information
Seed germination for all members of the genus oenothera is reported to be improved by cold/moist stratification (Steffen 1997).
Natural History
Grows on sandy slopes and flats, often in open woods, throughout Louisiana (except in the coastal parishes) and east Texas. It ranges from Kansas to Texas and east to Alabama and north Georgia. It is possible that evening primroses are edible as none have been reported poisonous (Harrington 1967).
Habitat
Sandy slopes and flats, often in open woods, rock ledges, sandy barrens, sandy prairies, rocky open woodlands, pastures, fallow fields, waste places.