Oenothera speciosa, a perennial herb originating in North
America, partly grows wild in western Japan; stems with many short
hairs growing to 30-60cm in height. Leaves are alternate, 5-7cm
long, in a linear-oblanceolate shape, with shallow margins. White or
light red flowers measure 5cm in diameter; buds face downward but
upward when open. Petals are in the shape of a broad-obovate, with
bases tinging yellow. Bloom time: May-August. |