Small Head Burnet

Sanguisorba menziesii Rydberg, sp. no v
Sanguisorba media Hook. Fl. Bor. Am. 1 : 197. 1832. Not Sanguisorba media L> 1762.
Glabrous perennial, with a short rootstock ; stem slender, 3-10 dm. high, mostly simple ; leaves odd-pinnate, the lower 2^ dm. long, with 11-15 petiolulate leaflets, occasionally with stipels; stipules large, rounded, coarsely toothed; leaflets rounded-oval, 2-6 cm. long, 1.5-4 cm. wide, coarsely serrate with broadly ovate, mucronate teeth, rounded at the apex, cordate at the base, dark-green and shining above, paler beneath ; spike oblong-cylindric, 1.5-3 cm. long, rounded at the apex; bracts ovate or lanceolate, rather densely pubescent, shorter than the buds; sepals darkpurple, oval, about 2.5 mm. long; filaments dilated, 5-7 mm. long, nearly 0.5 mm. wide at the apex.
Type collected in the mountains back of Short Bay, Alaska, in 1895. Thomas Howell 1620 (herb. N. Y. Bot. Gard.).
Distribution : Marshes from Alaska to Washington.