Polygonum inversum

Polygonum multiflorum Thunb. is a perennial herb with thick rhizomes, curved hooks, black, and is densely covered by the remaining old stems, leaves and stipules. The stem is 10-40 cm high, with (4)5-6 nodes, and is glabrous. Stipules sheaths are membranous, rust-colored, cylindrical, slightly wider at the upper part, oblique at the apex, brownish green at the upper part of the stem, rust-colored at the upper part of the stem, and sometimes pubescent; Leaves leathery, densely pubescent on the back, entire or microwave-shaped, rooting leaves with long stalks, about 7 cm long, narrowly ovate-lanceolate or ovoid-oblong, (3)4-7 cm long and 1-3 cm wide, rounded or slightly cardioid at the base, with no or a slight declination, tapering at the apex, with short stalks or no stalks at the lower and middle leaves, and triangular upper leaves. Bracts are dry, rust-colored, broadly oval or oval, about 4 cm long and 3 cm wide, with a long tail tip at the apex; Perianth 5-parted, lobes oblong or elliptic, about 3 main, 1.2-1.5 mm long, stamens 8, filaments linear, anthers violet, style 3, slender. Small compact fruit, trigonous, apex mucronate, brown, shiny. Born in alpine tundra. Distributed in Russian Far East and China (Northeast).
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