短枝发草Deschampsia littoralis (Gaud.) Reuter var. ivanovae (Tzvel.) P.C.Kuo et Z.L.Wu
短枝发草Deschampsia littoralis (Gaud.) Reuter var. ivanovae (Tzvel.) P.C.Kuo et Z.L.Wu
《Flora of China》 Vol. 22 (2006)
Deschampsia cespitosa subsp. ivanovae (Tzvelev) S. M. Phillips & Z. L. Wu
短枝发草 duan zhi fa cao
Basionym: Deschampsia ivanovae Tzvelev, Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk SSSR 21: 49. 1961; D. littoralis (Gaudin) Reuter var. ivanovae (Tzvelev) P. C. Kuo & Z. L. Wu; D. multiflora P. C. Kuo & Z. L. Wu.
Culms 30–70 cm. Leaf blades 1–3 mm wide. Panicle usually loosely contracted, often nodding, 5–15 cm, purplish brown tinged golden; branches flexuous, smooth or scaberulous, lowest up to 7 cm. Spikelets 4.5–8 mm; glumes much longer than adjoining lemmas, apex acuminate; lemmas awned from near base or near middle; awn not or only slightly longer than lemma. Fl. and fr. Jul–Sep.
* Alpine meadows, pebbly river beds, roadsides, damp places; 3200–5100 m. Gansu, Qinghai, Shaanxi, Sichuan, Xizang, Yunnan.
Deschampsia cespitosasubsp. ivanovae is distinguished mainly by its long-acuminate glumes. The name D. littoralis (Gaudin) Reuter has been misapplied to this taxon in Chinese literature. Genuine D. lit-toralis refers to a variant from Switzerland with short ligules and proliferating spikelets.
Deschampsia multiflora appears to be based on an aberrant gathering from Qinghai with 3–5 florets per spikelet. The type has been lost.
科名：禾本科 Gramineae
属名：发草属 Deschampsia
《Flora of China》 Vol. 22 (2006)
Deschampsia cespitosa subsp. ivanovae (Tzvelev) S. M. Phillips & Z. L. Wu
短枝发草 duan zhi fa cao
Basionym: Deschampsia ivanovae Tzvelev, Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk SSSR 21: 49. 1961; D. littoralis (Gaudin) Reuter var. ivanovae (Tzvelev) P. C. Kuo & Z. L. Wu; D. multiflora P. C. Kuo & Z. L. Wu.
Culms 30–70 cm. Leaf blades 1–3 mm wide. Panicle usually loosely contracted, often nodding, 5–15 cm, purplish brown tinged golden; branches flexuous, smooth or scaberulous, lowest up to 7 cm. Spikelets 4.5–8 mm; glumes much longer than adjoining lemmas, apex acuminate; lemmas awned from near base or near middle; awn not or only slightly longer than lemma. Fl. and fr. Jul–Sep.
* Alpine meadows, pebbly river beds, roadsides, damp places; 3200–5100 m. Gansu, Qinghai, Shaanxi, Sichuan, Xizang, Yunnan.
Deschampsia cespitosasubsp. ivanovae is distinguished mainly by its long-acuminate glumes. The name D. littoralis (Gaudin) Reuter has been misapplied to this taxon in Chinese literature. Genuine D. lit-toralis refers to a variant from Switzerland with short ligules and proliferating spikelets.
Deschampsia multiflora appears to be based on an aberrant gathering from Qinghai with 3–5 florets per spikelet. The type has been lost.