Saccharum spontaneum

甜根子草

Saccharum spontaneum L.

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

名彙資訊

學名發表文獻

L., Mantissa Plantarum 2: 183. 1771. (Mant. Pl.)

台灣首次記錄發表文獻

Ohwi, Acta phytotaxonomica et geobotanica eng 11: 151. 1942. (Acta Phytotax. Geobot.)

異名

Saccharum spontaneum L. var. roxburghii Honda

Honda, The Botanical magazine, Tokyo 38: 302. 1924. (Bot. Mag. Tokyo)

各語言俗名

中

羅氏甜根子草. 濱芒. 甘蔗茅.
英

Wild sugarcane.
日

かんしやがや. わせおばな.
台

Kân chià.

參考文獻

Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Perennials; rhizomes and culms erect, farinose below nodes, hairy below inflorescence.
Ligule obtuse, ca. 2 mm long, shortly ciliate.
Inflorescence a large panicle of ca. 20 cm long, branches erect, rachis and pedicels slender. Spikelets paired, monomorphic, lanceolate, 3-5 mm long, usually darkbrown, whitish, pointed above, callus with silky hairs; glumes persistent, pointed, coriaceous at base; lower glume ciliate on margins, 3-5 mm long, 2-keeled; upper glume boat shaped, margins ciliate, slightly smaller than lower, 1-keeled; lower lemma oblong, fringed at apex, margins ciliate, ca. 3 mm long, nerves obscure; palea wanting; upper lemma linear-elliptic, pointed, slightly fringed, ca. 3 mm long; palea ca. 1 mm long, upper margin fringed.
Caryopsis ca. 1.5 mm long, embryo 2/3 its length of grain.

分布

台灣 : common in gravelly river beds that are nearly dry except during floods.
世界 : Widely distributed in the warmer regions of the Old World.

引證標本

TAIPEI: Taipei City, Tanaka & Shimada s. n. Nov 1934*. Hsinchuan, Sasaki s. n. 12 Nov 1933. TAINAN: Tachiading, Morimoto 689. PINGTUNG: Tsutien, Hsu 525. TAITUNG: Lanyu Is., Sasaki s. n. 20 Sep 1937.