Amsonia latifolia. - Broad-leaved Amsonia. - Amsonia salicifolia - Willow-leaved Amsonia. - Natives of our southern states. These two species resemble each other somewhat, except one has long, broad, peach-shaped leaves, and the other willow-shaped; both are hardy perennials, with pretty blue flowers, two feet high, in June; easily cultivated in almost any soil.