Fourpoint evening primrose

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Fourpoint evening primrose leaves

Fourpoint evening primrose

Fourpoint evening primrose

Fourpoint evening primrose

Fourpoint evening primrose flower

Fourpoint evening primrose inflorescences

Fourpoint evening primrose

Fourpoint evening primrose inflorescence

Fourpoint evening primrose

Morphology

Stem

Erect, simple or branched, hairy.

Leaves

Alternate, simple; rosette blades narrowly oblanceolate, 1.2 to 3.2 inches long, 1/12 to 3/4 inch wide, margins wavy-toothed to nearly pinnatifid, petioles often as long as blade; stem leaves oblong-lanceolate to lance-ovate, 3/4 to 3.2 inches long, often crowded, margins nearly entire to remotely toothed, surface hairy, petioles short or absent.

Inflorescence

Spike, 4 to 12 inches long, dense, terminal.

Flower

Floral tube slender, .8 to 1.6 inches long, short hairy; sepals 4, lanceolate, 2/5 to 4/5 inch long, sparsely hairy; petals 4, yellow, 1/2 to 1 inch long, rhombic-ovate; stamens 8, shorter than petals; style as long or longer than petals; stigma 4-lobed.

Fruit

Capsule, cylindric, often curved, tapering toward tip, 2/4 to 4/5 inch long, short hairy; seeds in 2 rows in each compartment, reddish-brown.

Ecology

Habitat

Stream valleys, roadsides, and waste areas; sandy soils.

Distribution

Throughout Kansas, but principally in central three fifths.

Practical Information

Forage Value

Deer will eat fourpoint evening primrose.

Additional Notes