Oenothera tetragona Roth

Sundrops

Day-flowering perennial with stems to about 60 cm tall, often sprawling, slender and with bristly hairs. Basal leaves oblanceolate. Stem leaves lanceolate. Flowers with petals 1-1.8 cm long, yellow. Fruit capsule 6-12 mm long, narrowed towards the base but not so strongly as in o. fruticosa. Syn. O. fruticosa var. youngii hort., a name of no botanical standing.

var. fraseri (Pursh) Munz from the S Appalachian Mtns is hairless and has relatively broad leaves with a waxy bloom below and flowers with petals at least 2.5 cm long. Syn. O. glauca and O. fruticosa var. glauca are names of no botanical standing sometimes used for this variety.

E North America.

Source: Waldron, M.; Spencer, R. (2002). Fuchsia. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.

Hero image
kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Rosanae
order      Myrtales
family       Onagraceae
genus        Oenothera L.