This section is from the book "Harper's Guide To Wild Flowers", by Caroline A. Creevey. Also available from Amazon: Harper's Guide To Wild Flowers.
Family, Spiderwort. Color, blue to purplish. Sepals and petals, 3 of each, the sepals much smaller than the petals. Flowers, several in an umbel terminating the rather thick stems, 1 to 2 inches across, with slender, somewhat hairy pedicels. Leaves, long, narrow, about 1 foot long, channeled at the base where they clasp the stem. Stem stout, leafy, 8 inches to 3 feet tall. Plant straggling. May to August.
In rich, moist soil, Connecticut to Pennsylvania and South Carolina. Found 4,000 feet high in Virginia.
 
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