Onagraceae
Stamens twice as many as the petals Onagraceae
Corolla whitish to deep pink
Flowers 2–5 cm diam. Free part of floral tube mostly more than 1 cm long
Hairs on the stem long, spreading. Fruit ribbed, 10–15 mm long; upper fertile part 6–8 mm diam. Leaves ovate to lanceolate, 2–5 cm long, usually ± pinnatifid. Erect herb. Garden escape near habitation. Introd. from trop. America. Fl. summer–autumn Oenothera tetraptera
Hairs on the stem short. Fruit ± 4-angled; upper fertile part 2–5 mm diam. Leaves narrow-ovate to elliptic, c. 3 cm long, sinuate, obscurely dentate. Erect herb with underground runners. Cumberland Plain. Waste land and grasslands. Introd. from America. Fl. spring–summer Oenothera speciosa