Oenothera triloba
stemless evening primrose
Family
Onagraceae
Leaf Arrangement
basal (rosulate)
Leaf Attachment
petiolate
Leaf Margin
pinnatifid, subentire
Leaf Type
simple
Leaf Shape
oblong, elliptic, oblanceolate
Growth Form
forb
Flower Color
orange, yellow
Flower Month
February - July
Height (meters)
0.0 - 0.2
Milky Sap
No
Armed/Unarmed
Unarmed
Origin
native
Lifespan
annual, biennial
Animal Use
Special value to native bees.
Habitat
Clay or calcerous soils and dry open areas with drained soil such as prairies, floodplains, slopes, hillsides, rocky fields, open woodlands, roadsides, waste places, barrens and grassy areas. A common lawn invader.