Oenothera elata subsp. hirsutissima

Scientific Name (Genus/Species): Oenothera elata subsp. hirsutissima

Family: (Onagraceae)

(P) to 4′.  Hairy Evening Primrose.  Western North America.  From a basal rosette of leaves, reddish flowering stalks arch up and have grey-green, lance-like, hairy leaves with white veins. The unbranched inflorescence bear flowers that open from the bottom up. The beautiful two-to four-inch-wide fragrant, yellow flowers open about an hour before sunset and wither the next morning.  Each flower has four large, heart-shaped petals, four smaller sepals that appear fused in pairs, and a prominent X-shaped stigma that extends out beyond the petals and eight stamens. Pollinated particularly by Hawk or Sphinx Moths during the night. Sun.  3 & T2