Rhynchospora chinensis
華刺子莞
Rhynchospora chinensis Nees & Meyen ex Nees
名彙資訊
特徵描述
典藏標本
數位照片
分布位置
相關資訊
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名彙資訊
學名發表文獻
Nees, Novorum Actorum Academiae Caesareae Leopoldinae-Carolinae Naturae Curiosorum 19(Suppl. 1): 108. 1843. (Nov. Actorum Acad. Caes. Leop.-Carol. Nat. Cur.)
台灣首次記錄發表文獻
Koyama, Flora of Taiwan 5: 300. 1978. (Fl. Taiwan, 台灣植物誌)
異名
-
Rhynchospora longisetigera Hayata
各語言俗名
-
日すいしやいがくさ. いぬのはなひげ.
參考資料
-
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan, 台灣植物名彙)
特徵描述
生活型
herb
形態特徵
- More or less tufted perennial with very short rhizome. Culms erect, 30-70 cm tall, slender, rigid, 2-4-nodose.
- Leaves aggregated at base of culms and a few upper ones cauline and spaced, narrowly linear, 3-5 mm wide, flattish, gradually tapering above to acute, scabrous apex; sheaths 5-9 cm long, tightly surrounding culm; ligule short, truncated, membranaceous, rusty brown.
- Corymbs 3-5, mostly binate, suberect on unequal, exserted peduncles, subloosely bearing 1-8 clusters of spikelets; bracts surpassing subtending panicle, short-sheathing at base; bracteoles setaceous to scale like. Spikelets broadly lanceolate at maturity, 7-8 mm long, weakly laterally compressed, 4- or 5-flowered, (1- or) 2-fruited.
- glumes 5-7, ovate-oblong, membranaceous, 1-costate, brown to yellowish brown, acuminate at apex. Achenes broadly obovate, 2-2.5 mm long, somewhat unequally biconvex, subacute on edges, sides slightly shiny, brown, weakly transversely wrinkled with longitudinally oblong epidermal cells; stylebase slightly shorter than achene, conical, gradually tapering from very base to a filiform style; stigmas 2. Hypogynous bristles 6, filiform, 4-5.5 mm long, minutely upwardly scabrous.
分布
- 台灣 : Swamps and wet grasslands.
- 世界 : From central Japan through the Ryukyus and Taiwan southwestwards to southern Chinese continent and northern India, and southwards to Malaysia.
引證標本
NANTOU: Sun Moon Lake, Miki s. n., Kitamura 1358 & 1359 (KYO). HSINCHU: Hsinchu, Shimada 4326 & 5087 (TI).
引用文獻
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T01399
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