Evening Primrose or Hairy Evening Primrose Oenothera Villosa

Evening Primrose or Hairy Evening Primrose Oenothera villosa

Hairy Evening Primrose

Rosette with erect hairy stem. Basal leaves spoon-shaped, 1–4 in. long, with petioles 1/2–2 in. long; stem leaves 4–12 in., hairy, lance-shaped to oval, entire or with tiny teeth. Inflorescence is a few-flowered open spike. Flower sepals often tinted red, petals 1/3–3/4 in. long, yellow to orange, open in the evening, not fading to red. Capsules straight. Grows in dry shrublands, roadsides, at mid to high elevations.

Rarity: Common
Flowering Time: Mid Summer
Life Cycle: Biennial, Perennial
Height: 1–4 feet
Habitat: Meadow, West-Side Forest, East-Side Forest, Disturbed, Shrub-Steppe
Found In: East Gorge, Olympic NP
Native: Yes

Above information cited from “https://www.pnwflowers.com/flower/oenothera-villosa”


From Wikipedia, the free encyclopedia:

Oenothera is a genus of about 145 species of herbaceous flowering plants native to the Americas. It is the type genus of the family Onagraceae. Common names include evening primrose, suncups, and sundrops. They are not closely related to the true primroses (genus Primula).

Scientific classification:
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Myrtales
Family: Onagraceae
Subfamily: Onagroideae
Tribe: Onagreae
Genus: Oenothera


The species vary in size from small alpine plants 10 centimeters tall, such as O. acaulis from Chile, to vigorous lowland species growing to 3 meters, such as O. stubbei from Mexico. The leaves form a basal rosette at ground level and spiral up to the flowering stems. The blades are dentate or deeply lobed (pinnatifid). The flowers of many species open in the evening, hence the name “evening primrose”. They may open in under a minute. Most species have yellow flowers, but some have white, purple, pink, or red. Most native desert species are white. Oenothera caespitosa, a species of western North America, produces white flowers that turn pink with age. One of the most distinctive features of the flower is the stigma, which has four branches in an X shape.

Bibliographic details for “Oenothera”
Page name: Oenothera
Author: Wikipedia contributors
Publisher: Wikipedia, The Free Encyclopedia.
Date of last revision: 8 February 2017 08:56 UTC
Date retrieved: 10 May 2017 21:50 UTC
Permanent link: https://en.wikipedia.org/w/index.php?title=Oenothera&oldid=764330652
Primary contributors: Revision history statistics
Page Version ID: 764330652