Oenothera humifusa Nuttall
Onagraceae (Evening Primrose) Family
Plant is a perennial that bears rather woody stems, commonly branched from the base, spreading or ascending. Its preferred habitat is near or directly at seashore, sand dunes, stagnant marshes, moist roadside ditches. Distribution in the Escambia region is occasional.
The leaves are oblong to oblanceolate, about 1/2 inche long, entire or shallowly wavy margin; with alternate rounded notches and lobes, densely covered with short stiff adpressed hairs.
Flowers are usually few, sessile in the upper axils, not forming a distinct spike, or occasionally in a spike. Flowers have four distinct petals; hypanthium and ovary is hairy. The sepals are separately reflexed. Flowers occur in the summer.
Fruit is dark brown seeds, wedge or spindle-shaped, obscurely pitted.
Note: This evening primrose is known to hybridize with O. laciniata.