Oenothera glazioviana, a biennial herb introduced from
Europe, grows wild in various districts, seasides, or riversides,
rising to 0.8-1.5m in height. Stems are with stiff hairs, the bases
of which are swelling and tinging dark red. Leaves are 6-15cm long,
2-4cm wide, ovate-like lanceolate, with tips pointed and margins
having shallow wavy serrations. Yellow flowers, 6-8cm in diameter,
singly set themselves at axils with four broad petals. Bloom time:
July-September. |