Warm wind gives birth to wheat on sunny days, and green grass wins flowers.
Grass is a gramineous plant. According to the Flora of China, Volume 10 (1), the grass is slender and hairless, with a height of 10-25cm and a diameter of about 0.5 mm. ..
Dwarf herbs, usually forming dense clumps. Leaves are concentrated at the base, and leaf sheaths are densely fibrous near the ground; Ligule is very short, with short fiber hairs; The leaves are narrow and linear, often folded into needles, with a length of 1-6 cm and a width of 0.8- 1.2 mm, and sometimes there are sparse white villi on them, and the edges are thickened.
The spike is solitary, terminal, with 1 node at the place where it is planted, more or less curved, (3-)5-8(- 10) cm long, and the edge of the spike axis is short or hairless.
Spikelets lanceolate, 2.2-2.8 mm long; Glumes membranous, equal to spikelets, sometimes purplish brown, awnless, with 1 pulse; The first glume is slightly asymmetrical, and the back of the second glume is flat.
The lemma is membranous and transparent, about 65438 0.5 mm long, with an acuminate apex, pilose dorsal surface, -3 veins, and long white cilia near the edge of lateral veins; Palea membranous, lanceolate, slightly shorter than lemma, with 2 ridges, pilose on the ridges, and puberulent between lemmas. The flowering and fruiting period is from July to September.
The main differences from the original variety are: the plant is tall, the stem is 25-60 cm high, the diameter is about 1 mm, the ear length is (10-) 15-20(-25) cm, the spikelet is 2-4 mm long, and the edge of the ear axis is long or hairless; Lemma length1.6-3.0mm. Chromosome 2n = 40 (Moffett et al., 1949). The flowering and fruiting period is July-August.