生活型

herb

形態特徵

• Perennial.
• Leaves lanceolate, 3-8 by 0.9-1.8 cm, apex acuminate, base oblique, with red stripe on margins, glabrous or densely puberulous; midrib on lower surface uncinate, puberulous; sheath with red stripes, margins pilose.
• Inflorescences terminal, lower cincinnus 2- or 3-flowered, upper cincinnus lacking or vestigial; spathe infundibuliform, obliquely obtriangular, lower edge curved, falcate, 1-2 cm long; peduncle 0.5-1 cm long; pedicels 3-4 mm long. Sepals concave, anticous two elliptic, 4-4.7 by 2.8-3 mm, basally fused; posticous one lanceolate, 2.8-3 by 1.2-2.2 mm; petals unequal: lateral petals 2, mauve or indigo, sometimes white, clawed, limb broadly rounded-ovate, 5-7 by 8-11 mm, apex obtuse, base cuneate to cordate; medial petal white, 3-3.8 by 1.2-1.9 mm, not clawed. Anthers yellow, ellipsoid, sagittate, 1.6-2 mm long, filaments 3.6-5.1 mm long; medial one hastate, 2.4-2.8 mm long, filament 3.2-3.6 mm long; staminodes 3, posticous, all alike, filament 2.5-3.2 mm long; ovary ellipsoid to globose, ca. 1.3 mm long; style 5-8 mm long.
• Capsules trilocular, 2 or 3 valved, lustrous, brown, globose, ca. 4 mm in diam., glabrous. Seeds 1 per locule, brown or black, reniform, 2.8-3 by 2-2.4 mm, smooth.

分布

• 台灣 : semishaded places, forest edges, riverbeds and along seashores, below 1,500 m, throughout the island.
• 世界 : Japan, the Ryukyus, Indonesia, western Oceania.

引證標本

KEELUNG: Keelungyu, Peng & Wang 14091; Hopingdao, Chen & Wang 884. TAIPEI: Shihmen, Peng 9339; Sozan, Shimada s. n. Oct. 1913; Taishanyen, Chen 257. TAOYUAN: Paling to Lofu, Wang 10484. NANTOU: Hoshe, Kou & Kao 3960; Hui-Sun Experimental forest, Camp. Area, Chen & Hsu 760; Lushan, Peng 6186. TAICHUNG: Kukuan, Leu 1516. CHIAYI: from Chiehtung Villa to Tienyunshan, Peng 8851; Chuchi, Kwanghua Village, Peng 9948. TAINAN: Nanhsi Hsiang, Watershed area of Tsengwen Dam, Peng et al. 13386. KAOHSIUNG: Liukuei to Meinung, Chen et al. 790; Chuyunshan Forest Road, Wang et al. 10432. PINGTUNG: Chi-Chia logging tract, Wang & Yang 8922; Lilung shan, Chen 835; Kenting: Mt. Tajienshihshan, Peng 7147; Shiaoliuchiu, Huang 9037. ILAN: Kueishan Island, Hsu 7218; Chu-An, Peng et al. 13835. HUALIEN: on route from Taroko to Tienhsiang, Peng et al. 12643. TAITUNG: Green Island (Lutao): Haisenping, Peng 7579; Lanyu. Between Dongching and Yeyin, Peng & Hu 12682; Tawu Hsiang: Jia-lor-ban, Chen et al. 836. PENGHU: Chimetao, Huang 7044.

引用文獻

• WANG, Jenn-Che, CHEN, Yo-Jiun, and PENG, Ching-I, Flora of Taiwan, second edition 5: 158. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)