(aka: Ainsliaea uniflora) Diaspananthus uniflorus is a monotypic (only one) genus of woodland aster relatives that hail from the high mountains of Japan's Honshu, Shikoku, and Kyushu islands. The cutleaf foliage, which resembles a dwarf peltoboykinia, forms a small 8" wide semi-evergreen clump. The foliage is topped, starting in September, with arching 1' tall flower spikes of small purple flowers that resemble a cross between a dierama and dodecatheon. A well-drained, but slightly moist woodland soil is best. You're certain to be the only one of your gardening friends with diaspananthus...the rest have been treated and cured.