| + | Polygonum lichiangense, W. W. Smith. Closely allied to P. polystachyum, but branches and stipules setose, lvs. setose above and densely cinereo-tomentose beneath: erect, with a woody base, 2-4ft., the branches striate: lvs. very short-petioled, 2-5 in. long, lanceolate or oblong-lanceolate, caudate-acuminate, the margin more or less undulate; stipules about 1 in. long: fls. creamy white, in thyrsoid-paniculate clusters at nearly every node, the pedicels slender and about 1 line long. Lichiang Range, China, 10,000-11,000 ft. altitude.—A recent, intro., with fl.-sprays said to resemble those of P. baldschuanicum. |