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扁果绞股蓝

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中文学名: 扁果绞股蓝

拉丁学名:Gynostemma compressum

X. X. Chen et D. R. Liang

门: 被子植物门

纲: 双子叶植物纲

目: [[葫芦目]]

科: [[葫芦科]]

属: [[绞股蓝属]]

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'''扁果绞股蓝'''(biǎn guǒ jiǎo gǔ lán) ,学名 Gynostemma compressum X. X. Chen & D. R. Liang,草质攀援藤本。属[[葫芦科]]的一种植物。 多年生攀援草本。叶子互生,常5~7小叶,呈鸟趾状复叶;中央一枚较大,先端渐尖,叶缘有锯齿。夏季开黄白色花,圆锥花序腋生,雌雄异株。圆形浆果;种子如豌豆大,熟时为黑紫色。 茎无毛或疏被柔毛。鸟足状复叶,具(3-)5-7(-9)小叶,叶柄长3-7厘米;小叶膜质或纸质,卵状长圆形或披针形,中央小叶长3-12厘米,宽1.5-4厘米,具波状齿或圆齿状牙齿,两面疏被硬毛,侧脉7-8对;小叶柄略叉开,长1-5毫米,卷须2歧,稀单一。雌雄异株;雄花:圆锥花序长10-15(-30)厘米,被柔毛;花梗长1-4毫米,具钻状小苞片;花萼5裂,裂片三角形;花冠淡绿或白色,5深裂,裂片卵状披针形,具缘毛状小齿;雄蕊5,花丝短而合生。雌圆锥花序较小;子房球形;退化雄蕊5。果球形,径5-6毫米,成熟后黑色,无毛。种子2,卵状心形,两面具乳突。花期3-11月,果期4-12月。
<ref>[http://www.iplant.cn/info/Gynostemma%20compressum?t=foc 扁果绞股蓝 ], 植物智,引用日期 2018-12-10</ref>

==形态特征==
Stems slender, sulcate, glabrous. Tendrils filiform, apex usually bifid. Leaves pedate, with 7 leaflets; petiole 5-12 cm, glabrous; leaflets abaxially gray-green, adaxially green, elliptic or elliptic-ovate, membranous, base cuneate, margin crenulate, apex acuminate or acute, abaxially sparsely puberulent along midrib and lateral veins, adaxially sparsely pilose, middle leaflets 3.6-6.5 × 2-2.25 cm, lateral leaflets smaller, outside oblique; petiolule 3-5 mm.

Plants dioecious. Male flowers in panicles, axillary, 2-5 cm; peduncle filiform, 8-16 mm, glabrous; bracteoles subulate, ca. 1.5 mm; pedicels 2-5 mm; flowers greenish, ca. 1.5 mm in diam.; calyx segments triangular, ca. 0.8 × 0.5 mm; filaments very short, connate; anthers ovoid.

Female flowers solitary or paired, axillary; peduncle filiform, 5-9 mm, glabrous; pedicels 5-10 mm; calyx segments ca. 1.3 × 0.4 mm; corolla segments linear-lanceolate, 2-3 × ca. 0.4 mm, apex caudate-acuminate; ovary 2-locular, each locule with 1 ovule; styles 2, free; stigmas bifid.

Fruit baccate, compressed, obtriangular, 5-8 × 5-7 mm, glabrous, apex with persistent perianth and styles; fruit stalk filiform, 1.3-2.5 cm.

Seeds brownish, obtriangular, ca. 3 mm, apex ca. 3.5 mm in diam., both surfaces tuberculate, margin crenate and sulcate. Fl. Mar-Apr, fr. Mar-May.

==产地生境==
● Forests, moist limestone foothills; below 400 m. Guangxi (Longzhou).
==辨析==
This species is used in Chinese herbal medicine by the people of Guangxi.This species is used in Chinese herbal medicine by the people of Guangxi.

==标本鉴定信息==
学名 Gynostemma compressum X. X. Chen et D. R. Liang
中文名 扁果绞股蓝

鉴定人 张桂才
鉴定时间 19990000

===采集信息===
采集人 李治基
采集号 3333
采集时间 19561008

采集地 中国 广西壮族自治区
海拔 540
生境
习性
物候期 无花有果

==参考来源==
{{Reflist}}

[[Category:370 植物学总论]]
[[Category:375 植物分類學]]
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