Cramsay's Star of Bethlehem
Ornithogalum umbellatum

Part of a mix of small, minor bulbs I picked up mail-order several years ago. Not many of the bulbs came up at all, and I believe this is the last survivor of the whole batch. Since this one’s done tolerably well, I might stick some more in, they bloom at a nice time in spring, and are inconspicuous for the rest of the year.