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.