Ludwigia octovalvis

水丁香

Ludwigia octovalvis (Jacq.) Raven

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

Raven, Kew bulletin 15: 476. fig. 6d-e, 8h. 1962. (Kew Bull.)

台灣首次記錄發表文獻

Raven, Flora of Taiwan 3: 893. 1977. (Fl. Taiwan)

異名

Jussiaea suffruticosa L.

Forbes & Hemsl., The journal of the Linnean Society of London. Botany 23: 309. 1887. (J. Linn. Soc., Bot.)

各語言俗名

中

針筒射. 鎖匙筒. 青龍. 水仙桃. 假蕉. 金銅射. 水香蕉. 毛草龍. 黃花水丁香.
英

Lantern seedbox.
日

おきなわちようじたで. きだちきんばい.
台

Chúi teng hiun.
客

Ti dàn teu. Shúi gìm tziàu. Gìm gong sha2.

參考文獻

Ciou & Pong, Illustrations of Hakka ethnobotany of Taiwan 72. 2008. (Illustration of Hakka ethnobotany of Taiwan)
Hui-Chun Hsu, Plant use knowledge of Hakka ethnobotany in Beipu township, Hsinchu county. Master thesis. National Pingtung University of Science and Technology . 2007. (Plant use knowledge of Hakka ethnobotany in Beipu township, Hsinchu county.)
Hsiao-Ting Wu, Plant use knowledge of Hakka ethnobotany in Dahu Township, Miaoli county. Master thesis. National Pingtung University of Science and Technology . 2007. (Plant use knowledge of Hakka ethnobotany in Dahu Township, Miaoli county.)
Yuen-Po Yang, Shen-Horn Yen & Chung-Kang Lin, Illustrated Guide to Aquatic Plants of Taiwan . 2001. (Ill. Guide Aquatic Pl. Taiwan)
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Robust well branched herb, sometimes woody at the base or even shrubby, up to 400 cm tall, subglabrous, puberulent, or densely villous.
Leaves linear to subovate, 2–14.5 cm long, 0.4–4 cm wide, narrowly or broadly cuneate at base, the apex attenuate; submarginal vein well developed; petioles up to 10 mm long.
Sepals 4, ovate or lanceolate, 6–15 mm long, 1–7.5 mm wide. Petals yellow, broadly obovate or cuneate, emarginate, 5–17 mm long, 4–17 mm wide. Stamens 8, the epipetalous ones shorter; filaments 1–4 mm long; anthers 1.2–4 mm long, extrorse but soon crumbling and shedding pollen directly on the stigma. Pollen shed in tetrads. Discs slightly raised, with a white-hairy sunken nectary surrounding the base of each epipetalous stamen. Style 1.5–3.5 mm long; stigma subglobose, shallowly 4-lobed, 1.2–3 mm across.
Capsule thin-walled, 17–45 mm long, 2–8 mm. thick, terete, pale brown with 8 darker ribs, readily and irregularly loculicidal; pedicel up to 10 mm long. Seeds pluriseriate in each locule of the capsule, free, brown, rounded, 0.6-0.75 mm wide including the inflated raphe which is equal in size to the body of the seed and evenly transversely ridged.
2n = 32, 48. The distinctions between subsp. sessiliflora, with long erect hairs and broader leaves, and subsp. octovalvis, with appressed or sparse pubescence and narrower leaves, no longer seem useful either in Taiwan, where both forms are frequent, or elsewhere; little geographical distinction is evident.

物候

Flowers Jan-Dec; fruit Jan-Dec.

分布

世界 : Throughout the tropics and subtropics of the World, in moist places as about streams, swamps, ponds, and lakes at low elevations.

引證標本

TAIPEI: Kankou, Hsu 5242*; Shihpai, Chuang, Chao & Kao 4320. TAICHUNG: Tungshih, DeVol, Feung & Kao 4338. NANTOU: Sun Moon Lake, Ream 1–28. TAINAN: Matao, Morimoto s. n. 1941. KAOHSIUNG: Tabai, Hsu & Chuang 2414. PINGTUNG: Is. Hsiaoliuchiu, Hosokawa 1725; Mutan, Cheng 1459. TAITUNG: Is. Lanyu, Huang & Kao 5367.