红雀麦 hong que mai

Anisantha rubens (Linnaeus) Nevski; Bromus madritensis Linnaeus subsp. rubens (Linnaeus) Husnot; B. scoparius Linnaeus var. rubens (Linnaeus) Saint-Amans; Festuca rubens (Linnaeus) Persoon; Zerna rubens (Linnaeus) Grossheim.

Annual. Culms tufted, erect or ascending, 15–35 cm tall, pubescent below inflorescence. Leaf sheaths pubescent; leaf blades 5–10 cm × 3–5 mm, both surfaces pubescent. Panicle densely contracted, narrowly elliptic in outline, stiffly erect, 4–7 × ca. 2 cm, often tinged with purple; branches 2–5 mm, much shorter than spikelets, branches and pedicels pubescent. Spikelets 15–25 mm, florets4–9, upper florets sterile, reduced; glumes minutely hairy, keel ciliate, lower glume 7–9 mm, upper glume 10–12 mm; lemmas 12–16 mm, scabrid to pubescent, 2-toothed, apical teeth 4–5 mm, awned from sinus; awn 10–20 mm, scabrid, spreading at maturity; palea shorter than lemma, keels sparsely villous. Stamens (2 or)3, anthers to 2 mm. Fl. May–Jul. 2n = 14, 28.

Dry slopes; ca. 3900 m. Xinjiang [Tajikistan, Turkmenistan; N Africa, SW Asia, S Europe; introduced in America and Australia].

Many Chinese gatherings identified as Bromus rubens were misidentified specimens of B. tectorum. The presence of this species in China has not been confirmed.