Dactyloctenium aegyptium

龍爪茅

Dactyloctenium aegyptium (L.) Willd.

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

Willd., Enumeratio Plantarum 2: 1029. 1809. (Enum. Pl.)

台灣首次記錄發表文獻

Ohwi, The Botanical magazine, Tokyo 55: 312. 1941. (Bot. Mag. Tokyo)

異名

無

各語言俗名

英

Crowfoot grass.
日

たつのつめがや.
台

Tek bák chháu.

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

Annuals or perennials.
Inflorescence of 2-7, usually 4, stout digitate spikes. Spikelets usually 3-flowered, 3-4 mm long; glumes keeled, keel hirsute, 1-nerved; awn of lower glume 1-2 mm long, glume semi-ovate in side view, pointed, ca. 2.5 mm long, upper glume as long as lower one, with a slightly curved strong awn of ca. 1 mm long; lemma keeled, pointed, oblong-ovate in side view, 3 mm long, 3-nerved, lateral nerves close to margins; anthers 3, ca. 0.5 mm long.
Utricles globose, rugose, ca. 1 mm long.
This grass is said to be rich in cyanogenetic glycosides, and is therefore a dangerous to livestock at certain times. It is found usually in sandy soils.

引證標本

TAIPEI: Shihmen, Hsu 1275; Chinshan, Hsu 1278. ILAN: Suao, Kuoh 1728. MIAOLI: Tahu, Cheng 79. TAICHUNG: Fantsuliao, Hsu 9146. CHANGHUA: Lukang, Kuoh 1640; Chihu, Hsu 4719. NANTOU: Sun Moon Lake, Moo 2074. CHIAYI: Chiayi, De Vo1 7094; Hsinkang, Hsu 294. YUNLIN: Huwei, Kao & Hsu 268; Mailiao, Hsu 20150, TAINAN: Hsinhua, Hsu 702. KAOHSIUNG: Kaohsiung, Hsu s. n. 9 Jun 1968. PENGHU: Penghu, Hsu 673. PINGTUNG: Hengchun, Wang 12722. Chiuchutan, Chuang 1532*. TAITUNG: Tawu, Hsu 978; Lanyu Is., Hsu 9361; Lutao Is., Hsieh s. n. 9 Oct 1975.