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大花夏枯草Prunella grandiflora

时间:2013-09-25 11:05来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):大花夏枯草 学名( Scientific Name ): Prunella grandiflora (L.) Scholler 英文名( English Common Name ): 别名( Chinese Common Name ): 异名 ( Synonym ): Brunella grandiflora Moench Prunella vulgaris var. g
中文名(Chinese Name):大花夏枯草
学名(Scientific Name):Prunella grandiflora (L.) Scholler
英文名(English Common Name):
别名(Chinese Common Name):
异名Synonym):Brunella grandiflora Moench  Prunella vulgaris var. grandiflora L.  Prunella grandifora (L.) Moench  Prunella × webbiana   Prunella × webbiana
科属Family & Genus):唇形科(Labiatae)夏枯草属
形态特征(Description):多年生草本;根茎匍匐地下,在节上有须根。茎上升,高15-60厘米,钝四棱形,具柔毛状硬毛。叶卵状长圆形,长3.5-4.5厘米,宽2-2.5厘米,先端钝,基部近圆形,全缘,两面疏生硬毛,但下面毛常脱落,边缘具细缘毛,叶柄长2.5-4厘米,背腹扁平,具硬毛;花序下方的一对叶长圆状披针形,无柄。轮伞花序密集组成长4.5厘米的长圆形顶生花序,其下方不直接承以叶片,每一轮伞花序下承以苞片;苞片宽大,心形,先端具小尖头,向上逐渐细小,膜质,脉纹放射状,在边缘内方网结,外面在脉上疏被柔毛,边缘具缘毛,内面无毛;花梗短,长约1毫米,具柔毛状硬毛。花萼连齿在内长8毫米,外面沿脉上疏生硬毛,内面无毛,筒长3毫米,萼檐二唇形,上唇近圆形,长宽约5毫米,先端近圆形,具3齿,齿为宽三角形,具小刺尖头,侧齿稍长,下唇长圆形,长6毫米,宽3毫米,2裂,裂片达唇片中部,披针形,具刺状尖头。花冠蓝色,长20-27毫米,冠筒长9毫米,弯曲,内面近基部有斜向鳞毛毛环,冠檐二唇形,上唇长圆形,长1.2厘米,宽0.7厘米,向下弯曲,下唇宽大,3裂,中裂片较大,边缘具波齿状小裂片,侧裂片下垂。雄蕊4,前对较长,均延伸至上唇片之下,花丝分离,扁平,无毛,顶端有不明显的钝齿,花药2室,室极叉开。花柱丝状,伸出于雄蕊之上,先端相等2浅裂,裂片钻形。花盘近平顶,波状。小坚果近圆形,略具瘤状突起,在边缘及背面明显具沟纹。花期9月,果期9月以后。
分布(Distribution):原产欧洲经巴尔干半岛及西亚至亚洲中部,我国引种栽培。
用途(Use):
引自植物志英文版: FOC Vol. 17 Page 135
Prunella grandiflora (Linnaeus) Jacquin, Fl. Austriac. 4: 40. 1776.
大花夏枯草 da hua xia ku cao | Lamiaceae  | Prunella
Prunella vulgaris Linnaeus var. grandiflora Linnaeus, Sp. Pl. 2: 600. 1753; P. grandiflora (Linnaeus) Moench.
Stems ascending, 15-60 cm, villous-hirsute. Petiole 2.5-4 cm, hispid; leaf blade ovate-oblong, 3.5-4.5 × 2-2.5 cm, sparsely hirsute, abaxially subglabrous, ciliolate, base subrounded, margin entire, apex obtuse. Spikes ca. 4.5 cm, oblong, pedunculate; floral leaves sessile, oblong-lanceolate; bracts numerous, mucronate, sparsely villous on veins. Pedicel ca. 1 mm. Calyx ca. 8 mm, veins sparsely hirsute, tube ca. 3 mm; upper lip subcircular, ca. 5 × 5 mm, subrounded, with teeth broadly triangular, spinescent, lateral teeth longer; lower lip oblong, ca. 6 × 3 mm, with teeth lanceolate, spinescent. Corolla blue, 2-2.7 cm, tube ca. 9 mm, curved; upper lip oblong, ca. 12 × 7 mm, recurved; middle lobe of lower lip undulate-lobulate; lateral lobes pendulous. Nutlets subglobose, slightly tuberculate, back and margin conspicuously grooved. Fl. Sep, fr. Oct.
Cultivated in Nanjing [C and W Asia, Europe].





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