Amsonia elliptica, a perennial herb, inhabits fringes of
marshes and damp grasslands close to a river or lake. It stands 40
to 80cm and bears cymose inflorescence on the tip of a stem with
difficult-to-describe pale blue-purple, lanceolate flowers. Leaves,
6-10cm long, 1-2cm wide, are of alternate phyllotaxis in general,
the tips sharply pointed. Corollas are 1.3cm in diameter, in the
shape of a high cup, and the upper parts are cleft in five segments
opening flat. Bloom time: May-June.