Murdannia keisak
水竹葉
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名彙資訊
學名發表文獻
Hand.-Mazz., Symbolae Sinicae 7(5): 1243. 1936. (Symb. Sin.)
台灣首次記錄發表文獻
Hsieh & Yang, Nom. Pl. Taiwan 227. 1969.
異名
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Aneilema japonicum auct. non Kunth.Nakai, Journal of Japanese Botany 18: 287. 1942. (J. Jpn. Bot., 植物硏究雑誌)
各語言俗名
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中竹葉菜. 竹葉草. 竹頭草.
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英Water murdannia.
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日いぼくさ.
參考資料
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Ciou & Pong, Illustrations of Hakka ethnobotany of Taiwan 74. 2008. (Illustration of Hakka ethnobotany of Taiwan, 台灣客家民族植物圖鑑篇)
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Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan, 台灣植物名彙)
特徵描述
生活型
herb
形態特徵
- Annuals, aquatic. Stems prostrate at base, erect above, branched, puberulent in a line decurrent from sheath, otherwise nearly glabrous; rooting at nodes; internodes 1.2-4.1 cm long.
- Leaves sessile, blade linear to lanceolate, 2-6.7 cm by 4-7 mm, apex acuminate, glabrous, margins scabrescent, sheath puberulent on margins.
- Inflorescences terminal, consisting of single flowers and 1 or 2 flowering shoots from axils of cauline leaves; bracteoles lanceolate, 0.3-1 cm long; pedicel 0.6-1.6 cm long. Flowers actinomorphic; sepals lanceolate, boat shaped, greenish, equal, 4-7 by ca. 1.5 mm, apex obtuse, glabrous or ciliate; petals suborbicular, 6-7 by ca. 5 mm, whitish purple or white, mid one convex, veins obscure in fresh material; fertile stamens 3, equal, antesepalous, anthers purple, narrowly ellipsoid-oblong, ca. 2.5 mm long; filaments ca. 3.5 mm long, hyaline; staminodes 3, equal, antepetalous, antherodes cordate, purple, ca. 0.75 mm long, filaments ca. 2 mm long, bearded, hyaline; ovary oblong-ellipsoid, acutely 3-angled, ca. 1.75 mm long; style thickened toward the base, ca. 2 mm long, glabrous.
- Capsule 5.5-9.5 mm long, apex mucronulate or acuminate. Seeds 2 or 3 per locule, brown, dimorphic: seeds at apex of capsule deltoid, others trapezoid, 1-2.7 by 1.2-1.5 mm, marbled, embryostega lateral or semilateral, sunken, hilum linear.
分布
- 台灣 : usually in swamps, marshes, and rice fields, low elevations.
- 世界 : The eastern United States, Italy, Japan, Korea, India, Vietnam, Laos, Cambodia and mainland China.
引證標本
TAIPEI: Chihsingshan, Hsu 172; between Kungliao and Hutzupei, Peng et al. 13579; Pinglin, Yang 1489; Shihting, Tateishi et al. 16636; Wulai Hsiang, Fushan Botanical Garden, Peng et al. 15150; Datun Natural Park, Wang & Liao 599. TAOYUAN: on route from Hsiayun to Hsiayunping, Peng 10300; Yangmei, Peng 11120. NANTOU: Nichigetsutan, Kudo & Sasaki 15314; on route from Puli to Huisun Exp. Forest. Lu 25247. PINGTUNG: Ako, Matuda 681. ILAN: Shuanglienpei, Chen et al. 893.
引用文獻
典藏標本
共有 18 份典藏標本
鄭喬尹 Chiao-Yi Cheng, 高資棟 T.D.Kao, 陳祖威 Tsu-Wei Chen
桃園 Taoyuan
吳聖傑 Sheng-Chieh Wu
Kinmen
S.Y.Lu
南投 Nantou
立石庸一 Y.Tateishi, 邑田仁 J.Murata, etc.
台北 Taipei
H.N.Yang
台北 Taipei
郭城孟 C.M.Kuo
台北 Taipei
K.S.Hsu
台北 Taipei
清水英夫 Hideo Shimizu
台北 Taipei
清水英夫 Hideo Shimizu
台北 Taipei
清水英夫 Hideo Shimizu
台北 Taipei
鈴木重良 Sigeyosi Suzuki
台北 Taipei
山本由松 Yamamoto, Mori
南投 Nantou
鈴木重良 S.Suzuki
南投 Nantou
工藤祐舜 Kudo, Sasaki
南投 Nantou
工藤祐舜 Kudo, Sasaki
南投 Nantou
山本由松 Y.Yamamoto
南投 Nantou
工藤祐舜 Kudo, Sasaki
南投 Nantou
松田英二 E.Matsuda
屏東 Pingtung