数据列表:
甜茅属 : 植物 | eFloras | 来源:http://www.efloras.org/
甜茅属 : 植物 | 中国植物物种信息 | 来源:http://www.plants.csdb.cn/
甜茅属 : 植物 | 中国植物物种信息-云南植物志 | 来源:http://www.plants.csdb.cn/
甜茅属 : 植物 | 中国种子植物 | 来源:中国种子植物光盘

Efloras
所属科:Poaceae
父拉丁名:Poaceae
分类等级:属

Glyceria

甜茅属
Accepted Name
原始页面连接:www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=113749
出处:Flora of China
所在卷:FOC Vol. 22
55. Glyceria R. Brown, Prodr. 179. 1810.

甜茅属 tian mao shu

Hemibromus Steudel.

Perennial, usually rhizomatous. Culms erect, ascending or prostrate. Leaf sheaths with margins completely or partially fused; leaf blades linear; ligule membranous. Panicle open or contracted, sometimes racemelike when spikelets few. Spikelets with several to many florets, laterally compressed or terete; rachilla smooth or scabrid, disarticulating below each floret; glumes small to almost as long as adjacent lemma, membranous, 1-veined, apex acute or obtuse; floret callus small, glabrous, obtuse; lemmas overlapping, ovate to lanceolate or oblong, thinly herbaceous or thinly leathery, back rounded, smooth, granular or scaberulous, 5–11-veined, veins conspicuous, parallel, apex usually membranous, acute to broadly obtuse or denticulate; palea as long as, longer, or slightly shorter than lemma, keels sometimes narrowly winged. Stamens 2 or 3. x = 10.

About 40 species: temperate regions of the world, in wet habitats; ten species (one endemic) in China.


1 Spikelets linear to narrowly oblong, terete, 1–4.2 cm; palea keels narrowly winged in upper half   (2)
+ Spikelets usually ovate to narrowly oblong, laterally compressed, up to 1(–1.4) cm; palea keels wingless   (4)
       
2 (1) Spikelets 2.5–4.2 cm; palea distinctly longer than lemma.   1 G. acutiflora subsp. japonica
+ Spikelets 1–2.5 cm; palea as long as or only slightly longer than lemma   (3)
       
3 (2) Leaf blades 2–3 mm wide; lower panicle branches 2 per node, bearing 1(–3) spikelets.   2 G. chinensis
+ Leaf blades 4–10 mm wide; lower panicle branches 3–5 per node, bearing up to 15 spikelets.   3 G. notata
       
4 (1) Culms 20–50 cm tall, tufted or with slender rhizomes; leaf blades 1.5–3.5 mm wide   (5)
+ Culms robust, 50–150 cm tall, with thick spreading rhizomes; leaf blades 3–16 mm wide   (6)
       
5 (4) Plant loosely tufted; lowest panicle branches bearing up to 14 spikelets; spikelets elliptic-oblong, 0.6–0.9 cm.   4 G. tonglensis
+ Plant with filiform rhizomes; lowest panicle branches bearing 1–4 spikelets; spikelets linear, 0.8–1.4 cm.   5 G. leptorhiza
       
6 (4) Stamens 2, anthers 0.5–0.8 mm; plants mainly of swampy forest   (7)
+ Stamens 3, anthers 1–2 mm; plants usually of wet meadows and other open wet habitats   (8)
       
7 (6) Culms hard, 5–8 mm in diam.; leaf blades firm; ligule 0.3–1 mm; spikelets pale green maturing yellowish brown.   6 G. leptolepis
+ Culms soft, 3–5 mm in diam.; leaf blades soft, thin; ligule 2–3 mm; spikelets bright green or purple tinged.   7 G. lithuanica
       
8 (6) Leaf blades 3–5 mm wide; upper glume 3.5–4.5 mm, 3/4 as long as adjoining lemma or more, acuminate.   8 G. spiculosa
+ Leaf blades 5–16 mm wide; upper glume 2–4 mm, 3/4 as long as adjoining lemma or less, obtuse or subacute   (9)
       
9 (8) Adaxial surface of leaf blades grayish green, minutely papillose; panicle open, branches spreading; upper glume 2–3 mm.   9 G. triflora
+ Adaxial surface of leaf blades green, smooth; panicle somewhat contracted, branches obliquely ascending; upper glume 3–4 mm.   10 G. maxima