1. Miscanthus sacchariflorus (Maxim.) Hack. (Amur silvergrass, plume grass)

Pl. 123 c–e; Map 503

Plants with long‑creeping rhizomes, forming large clumps or colonies. Flowering stems 100–200(–250) cm long, hairy at the nodes. Leaf sheaths glabrous or the lowermost hairy. Leaf blades 20–80 cm long, 8–20 mm wide, glabrous, often somewhat glaucous, the margins strongly roughened. Inflorescences 15–40 cm long. Spikelet bases with the hairs about 2 times as long as the spikelet. Glumes 4.5–6.0 mm long, faintly 3‑nerved, long‑hairy on the back. Fertile lemmas 2.5–3.5 mm long, the tip pointed, awnless or with a straight awn 1–2 mm long. 2n=38, 57, 64, 76, 95. August–September.

Introduced, uncommon, known thus far from Johnson and St. Charles Counties (native of eastern Asia, widely cultivated and escaping sporadically in the U.S.). Roadsides.