Onagraceae

Stamens twice as many as the petals Onagraceae
Floral tube extending above the ovary. Sepals 4 Oenothera
Corolla yellow sometimes tinged bronze-red with age
Flowers more than 2 cm diam
Hairs on the stem white to the base, scarcely swollen
Stems with a few long or short hairs or almost glabrous towards the base. Leaves linear to narrow-ovate, ± pubescent, 2–6 cm long, sinuate to almost flat at the margin, obscurely dentate to almost entire. Flowers 2–4 cm diam. Capsule cylindrical, tapering towards the base, 2–3 cm long. Seeds angular. Widespread. In disturbed ground. Introd. from S. America. Fl. most of the year (O. stricta hybridizes with O. indecora ssp. bonariensis) Oenothera strictastricta