大苞水竹叶Murdannia bracteata
中文名（Chinese Name）：大苞水竹叶
学名（Scientific Name）：Murdannia bracteata (C.B.Clarke) J.K.Morton ex D.Y.Hong
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Aneilema bracteatum (C. B. Clarke) Kuntze Aneilema kuntzei C. B. Clarke Aneilema nudiflorum var. bracteatum C. B. Clarke
科属（Family & Genus）：鸭跖草科Commelinaceae水竹叶属Murdannia
形态特征（Description）：多年生草本（有的标本上可见到横走根状茎）。根须状而极多，直径0.5-1毫米，相当密地被长绒毛。主茎不育，极短，可育茎通常2支，由主茎下部叶丛中发出，长而匍匐，顶端上升，节上生根，长20-60厘米，全面被细柔毛或仅一侧被毛，节间长达10厘米。叶在主茎上的密集成莲座状，剑形，长20-30厘米，宽1.2-1.8厘米，下部边缘有细长睫毛，上面无毛，下面有短毛或无毛；可育茎上的叶卵状披针形至披针形，长3-12厘米，宽1-1.5厘米，两面无毛或背面有糙毛，叶鞘全面被细长柔毛或仅沿口部一侧有刚毛。蝎尾状聚伞花序通常2-3个，少单个；总苞片叶状，但较小；聚伞花序因花极为密集而呈头状，具2-3厘米长的总梗；苞片圆形，长5-7毫米，早落；花梗极短，果期伸长，长2-3毫米，强烈弯曲；萼片草质，卵状椭圆形，浅舟状，长约4毫米；花瓣蓝色。蒴果宽椭圆状三棱形，长4毫米。种子黄棕色，具由胚盖发出的辐射条纹，并有白色细网纹，无孔。花果期5-11月。
分布（Distribution）：产广东、海南、广西和云南南部。生于山谷水边或溪边沙地上。广州华南植物园曾有栽培。中南半岛也有分布。
用途（Use）：
引自中国植物志英文版：FOC Vol. 24 Page 30
Murdannia bracteata (C. B. Clarke) J. K. Morton ex D. Y. Hong, Acta Phytotax. Sin. 12: 473. 1974.
大苞水竹叶 da bao shui zhu ye| Commelinaceae | Murdannia
Aneilema nudiflorum (Linnaeus) R. Brown var. bracteatum C. B. Clarke in A. de Candolle & C. de Candolle, Monogr. Phan. 3: 211. 1881; A. bracteatum (C. B. Clarke) Kuntze; A. kuntzei C. B. Clarke.
Herbs perennial. Roots fibrous, 0.5--1 mm in diam., rather densely tomentose. Rhizomes horizontal. Main stem undeveloped, very short; fertile stems usually 2, arising from rosette, long, creeping, ascending apically, 20--60 cm; internodes ca. 10 cm, pubescent throughout or only on 1 side. Basal leaves rosulate; leaf blade linear, 20--30 × 1.2--1.8 cm, glabrous on both surfaces or abaxially puberulent, margin ciliate proximally. Cauline leaves with sheath pubescent throughout or only hispid-ciliate at mouth; leaf blade ovate-lanceolate or lanceolate, 3--12 × 1--1.5 cm, glabrous on both surfaces or abaxially scabrid. Cincinni (1--)3--5, densely flowered, capitate; peduncle 2--3 cm; involucral bracts leaflike but smaller than leaves; bracts orbicular, 5--7 mm, caducous; pedicels very short, strongly curved, elongate to 2--3 mm in fruit. Sepals ovate-elliptic, ca. 4 mm. Petals blue, obovate-orbicular. Fertile stamens 2; filaments pubescent; staminodes 3; antherodes 3-sect. Capsule broadly ellipsoid, trigonous, ca. 4 mm, Seeds 2 per valve, yellow-brown, radiate striate, white reticulate, not pitted. Fl. May--Nov.
By water, sandy places in ravines. Guangdong, Guangxi, Hainan, S Yunnan (Lüchun Xian, Xishuangbanna Dai Zu Zizhizhou) [Laos, Thailand, Vietnam].
（责任编辑：徐晔春）
学名（Scientific Name）：Murdannia bracteata (C.B.Clarke) J.K.Morton ex D.Y.Hong
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Aneilema bracteatum (C. B. Clarke) Kuntze Aneilema kuntzei C. B. Clarke Aneilema nudiflorum var. bracteatum C. B. Clarke
科属（Family & Genus）：鸭跖草科Commelinaceae水竹叶属Murdannia
形态特征（Description）：多年生草本（有的标本上可见到横走根状茎）。根须状而极多，直径0.5-1毫米，相当密地被长绒毛。主茎不育，极短，可育茎通常2支，由主茎下部叶丛中发出，长而匍匐，顶端上升，节上生根，长20-60厘米，全面被细柔毛或仅一侧被毛，节间长达10厘米。叶在主茎上的密集成莲座状，剑形，长20-30厘米，宽1.2-1.8厘米，下部边缘有细长睫毛，上面无毛，下面有短毛或无毛；可育茎上的叶卵状披针形至披针形，长3-12厘米，宽1-1.5厘米，两面无毛或背面有糙毛，叶鞘全面被细长柔毛或仅沿口部一侧有刚毛。蝎尾状聚伞花序通常2-3个，少单个；总苞片叶状，但较小；聚伞花序因花极为密集而呈头状，具2-3厘米长的总梗；苞片圆形，长5-7毫米，早落；花梗极短，果期伸长，长2-3毫米，强烈弯曲；萼片草质，卵状椭圆形，浅舟状，长约4毫米；花瓣蓝色。蒴果宽椭圆状三棱形，长4毫米。种子黄棕色，具由胚盖发出的辐射条纹，并有白色细网纹，无孔。花果期5-11月。
分布（Distribution）：产广东、海南、广西和云南南部。生于山谷水边或溪边沙地上。广州华南植物园曾有栽培。中南半岛也有分布。
用途（Use）：
引自中国植物志英文版：FOC Vol. 24 Page 30
Murdannia bracteata (C. B. Clarke) J. K. Morton ex D. Y. Hong, Acta Phytotax. Sin. 12: 473. 1974.
大苞水竹叶 da bao shui zhu ye| Commelinaceae | Murdannia
Aneilema nudiflorum (Linnaeus) R. Brown var. bracteatum C. B. Clarke in A. de Candolle & C. de Candolle, Monogr. Phan. 3: 211. 1881; A. bracteatum (C. B. Clarke) Kuntze; A. kuntzei C. B. Clarke.
Herbs perennial. Roots fibrous, 0.5--1 mm in diam., rather densely tomentose. Rhizomes horizontal. Main stem undeveloped, very short; fertile stems usually 2, arising from rosette, long, creeping, ascending apically, 20--60 cm; internodes ca. 10 cm, pubescent throughout or only on 1 side. Basal leaves rosulate; leaf blade linear, 20--30 × 1.2--1.8 cm, glabrous on both surfaces or abaxially puberulent, margin ciliate proximally. Cauline leaves with sheath pubescent throughout or only hispid-ciliate at mouth; leaf blade ovate-lanceolate or lanceolate, 3--12 × 1--1.5 cm, glabrous on both surfaces or abaxially scabrid. Cincinni (1--)3--5, densely flowered, capitate; peduncle 2--3 cm; involucral bracts leaflike but smaller than leaves; bracts orbicular, 5--7 mm, caducous; pedicels very short, strongly curved, elongate to 2--3 mm in fruit. Sepals ovate-elliptic, ca. 4 mm. Petals blue, obovate-orbicular. Fertile stamens 2; filaments pubescent; staminodes 3; antherodes 3-sect. Capsule broadly ellipsoid, trigonous, ca. 4 mm, Seeds 2 per valve, yellow-brown, radiate striate, white reticulate, not pitted. Fl. May--Nov.
By water, sandy places in ravines. Guangdong, Guangxi, Hainan, S Yunnan (Lüchun Xian, Xishuangbanna Dai Zu Zizhizhou) [Laos, Thailand, Vietnam].
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