夏天无Corydalis decumbens
中文名（Chinese Name）：夏天无
学名（Scientific Name）：Corydalis decumbens (Thunb.) Pers.
英文名（English Common Name）：
别名（Chinese Common Name）：伏生紫堇
异名（Synonym）：Corydalis kelungensis Hayata Corydalis amabilis Migo Corydalis edulioides Fedde Fumaria decumbens Thunb. Pistolochia decumbens (Thunb.) Holub Corydalis edulioides var. haimensis Fedde Corydalis gracilipes S. Moore Capnoides decumbens Kuntze Corydalis decumbens f. albescens (Takeda) Ohwi ex S.Akiyama
科属（Family & Genus）：罂粟科（Papaveraceae）紫堇属
形态特征（Description）：块茎小，圆形或多少伸长，直径4-15毫米；新块茎形成於老块茎顶端的分生组织和基生叶腋，向上常抽出多茎。茎高10-25厘米，柔弱，细长，不分枝，具2-3叶，无鳞片。叶二回三出，小叶片倒卵圆形，全缘或深裂成卵圆形或披针形的裂片。总状花序疏具3-10花。苞片小，卵圆形，全缘，长 5-8毫米。花梗长10-20毫米。花近白色至淡粉红色或淡蓝色。萼片早落。外花瓣顶端下凹，常具狭鸡冠状突起。上花瓣长14-17毫米，瓣片多少上弯；距稍短于瓣片，渐狭，平直或稍上弯；蜜腺体短，约占距长的1/3至1/2，末端渐尖。下花瓣宽匙形，通常无基生的小囊。内花瓣具超出顶端的宽而圆的鸡冠状突起。蒴果线形，多少扭曲，长13-18毫米，具6-14种子。种子具龙骨状突起和泡状小突起。
分布（Distribution）：产江苏、安徽、浙江、福建、江西、湖南、湖北、山西、台湾，生于海拔80-300米左右的山坡或路边。日本南部有分布。
用途（Use）：本种花的大小和形态变异较大，中国东部和中部的居群常具较大的花。本种块茎含延胡索甲素、乙素等多种生物碱，有舒筋活络、活血止痛的功能。对风湿关节痛、跌打损伤、腰肌劳损和高血压有明显的治疗作用。
引自中国植物志英文版：FOC Vol. 7 Page 312
Corydalis decumbens (Thunberg) Persoon, Syn. Pl. 2: 296. 1806.
夏天无 xia tian wu | Papaveraceae | Corydalis
Fumaria decumbens Thunberg, Nova Acta Acad. Sci. Imp. Petrop. Hist. Acad. 12: 102. 1801; Corydalis amabilis Migo; C. eduloides Fedde; C. eduloides var. haimensis Fedde; C. gracilipes S. Moore; C. kelungensis Hayata; Pistolochia decumbens (Thunberg) Holub.
Tuber rounded, 4-13 mm in diam.; new tubers arising directly on old tuber, mainly from axils of radical leaves. Stems usually several from each tuber, 10-25 cm, slender, weak, simple, with 2 or 3 leaves, without scales. Leaves twice to 3 × ternate; leaflet entire or deeply cut into subacute lobes. Raceme lax, 3-10-flowered; bracts ovate, 5-8 mm, entire. Pedicel 10-20 mm. Flowers nearly white or pale pink, sometimes marked with light blue, smelling like Viola odorata. Sepals caducous. Upper petal 14-18 mm, usually narrowly crested, with spreading limb; spur straight or slightly curved, distinctly shorter than limb; nectary 1/3-1/2 as long as spur, apex acuminate; lower petal broadly spatulate; inner petals with broad, rounded crests exceeding apex. Capsule linear, slightly torulose, 13-18 mm, 6-14-seeded. Seeds keeled, covered with vesicular papillae. Self-compatible. Fl. and fr. Feb-May.
Mountain slopes, roadsides, wastelands near coast; 100-300 m. Anhui, Fujian, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi (Hua Shan), Taiwan, Zhejiang [S Japan (including Ryukyu Islands)].
This species is an important herb in traditional Chinese medicine.
A plant possibly related to Corydalis decumbens but more robust with crenately lobed leaflets and larger lobed tuber has recently been recorded in Hunan. We have yet only photographic documentation of this possibly new species.
（责任编辑：徐晔春）
学名（Scientific Name）：Corydalis decumbens (Thunb.) Pers.
英文名（English Common Name）：
别名（Chinese Common Name）：伏生紫堇
异名（Synonym）：Corydalis kelungensis Hayata Corydalis amabilis Migo Corydalis edulioides Fedde Fumaria decumbens Thunb. Pistolochia decumbens (Thunb.) Holub Corydalis edulioides var. haimensis Fedde Corydalis gracilipes S. Moore Capnoides decumbens Kuntze Corydalis decumbens f. albescens (Takeda) Ohwi ex S.Akiyama
科属（Family & Genus）：罂粟科（Papaveraceae）紫堇属
形态特征（Description）：块茎小，圆形或多少伸长，直径4-15毫米；新块茎形成於老块茎顶端的分生组织和基生叶腋，向上常抽出多茎。茎高10-25厘米，柔弱，细长，不分枝，具2-3叶，无鳞片。叶二回三出，小叶片倒卵圆形，全缘或深裂成卵圆形或披针形的裂片。总状花序疏具3-10花。苞片小，卵圆形，全缘，长 5-8毫米。花梗长10-20毫米。花近白色至淡粉红色或淡蓝色。萼片早落。外花瓣顶端下凹，常具狭鸡冠状突起。上花瓣长14-17毫米，瓣片多少上弯；距稍短于瓣片，渐狭，平直或稍上弯；蜜腺体短，约占距长的1/3至1/2，末端渐尖。下花瓣宽匙形，通常无基生的小囊。内花瓣具超出顶端的宽而圆的鸡冠状突起。蒴果线形，多少扭曲，长13-18毫米，具6-14种子。种子具龙骨状突起和泡状小突起。
分布（Distribution）：产江苏、安徽、浙江、福建、江西、湖南、湖北、山西、台湾，生于海拔80-300米左右的山坡或路边。日本南部有分布。
用途（Use）：本种花的大小和形态变异较大，中国东部和中部的居群常具较大的花。本种块茎含延胡索甲素、乙素等多种生物碱，有舒筋活络、活血止痛的功能。对风湿关节痛、跌打损伤、腰肌劳损和高血压有明显的治疗作用。
引自中国植物志英文版：FOC Vol. 7 Page 312
Corydalis decumbens (Thunberg) Persoon, Syn. Pl. 2: 296. 1806.
夏天无 xia tian wu | Papaveraceae | Corydalis
Fumaria decumbens Thunberg, Nova Acta Acad. Sci. Imp. Petrop. Hist. Acad. 12: 102. 1801; Corydalis amabilis Migo; C. eduloides Fedde; C. eduloides var. haimensis Fedde; C. gracilipes S. Moore; C. kelungensis Hayata; Pistolochia decumbens (Thunberg) Holub.
Tuber rounded, 4-13 mm in diam.; new tubers arising directly on old tuber, mainly from axils of radical leaves. Stems usually several from each tuber, 10-25 cm, slender, weak, simple, with 2 or 3 leaves, without scales. Leaves twice to 3 × ternate; leaflet entire or deeply cut into subacute lobes. Raceme lax, 3-10-flowered; bracts ovate, 5-8 mm, entire. Pedicel 10-20 mm. Flowers nearly white or pale pink, sometimes marked with light blue, smelling like Viola odorata. Sepals caducous. Upper petal 14-18 mm, usually narrowly crested, with spreading limb; spur straight or slightly curved, distinctly shorter than limb; nectary 1/3-1/2 as long as spur, apex acuminate; lower petal broadly spatulate; inner petals with broad, rounded crests exceeding apex. Capsule linear, slightly torulose, 13-18 mm, 6-14-seeded. Seeds keeled, covered with vesicular papillae. Self-compatible. Fl. and fr. Feb-May.
Mountain slopes, roadsides, wastelands near coast; 100-300 m. Anhui, Fujian, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi (Hua Shan), Taiwan, Zhejiang [S Japan (including Ryukyu Islands)].
This species is an important herb in traditional Chinese medicine.
A plant possibly related to Corydalis decumbens but more robust with crenately lobed leaflets and larger lobed tuber has recently been recorded in Hunan. We have yet only photographic documentation of this possibly new species.
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