生活型

herb

形態特徵

• Annual herbs; stems cylindrical, erect, the upper part often branched, 40–80 cm tall.
• Leaves alternate, lanceolate, ovate, sessile or petiolate, 5–8 cm long, 1–3 cm wide, acute or acuminate at apex, attenuate at base, glabrous.
• Spikes terminal, lanceolate or cylindrical, 5–8 cm long, 1–2.5 cm wide, densely many flowered; bracts and bracteoles broadly lanceolate, ca. 4 mm long, white, scarious, acuminate; perianth segments 5, lanceolate, 8–10 mm long, 2 mm wide, 1-veined; stamens 5, filaments connate at base, cup-shaped.
• Utricles globose, half as long as perianth, circumscissile; seeds small, several, black.

分布

• 台灣 : in open fields or waste places throughout Taiwan.
• 世界 : Distributed in Africa and subtropical regions of Asia.

引證標本

TAIPEI: Taipei City, Chuang & Kao 2826; Kuanyinshan, Chuang & Kao 4612. ILAN: Chiaochi, Kao 3261. MIAOLI: Tashanchiao, Hsu 6393. CHIAYI: Chiayi, Yamashita 363. TAINAN: Matou, Suzuki 4796; Chiali, Morimoto 162. KAOHSIUNG: Liukuei, Hsu 5063; Konshan, Okada s. n. 1940. PENGHU: Penghu, Huang & Kao 6839; Hsihyu, Kuoh 1001. PINGTUNG: Mutan, Cheng 1464; Oluanpi, Huang 4843. TAITUNG: Is. Lutao, Huang & Kao 6938.

參考文獻

• LIU, TANG-SHUI and KAO, MUH-TSUEN, Flora of Taiwan, second edition 2: 400. 1996.  (Fl. Taiwan 2nd edit.)