华中虎耳草Saxifraga fortunei

中文名(Chinese Name):华中虎耳草
学名(Scientific Name):Saxifraga fortunei Hook. f.
英文名(English Common Name):
别名(Chinese Common Name):齿瓣虎耳草
异名(Synonym):Saxifraga cortusifolia var. fortunei (Hook.) Maxim.
科属(Family & Genus):虎耳草科(Saxifragaceae)虎耳草属
形态特征(Description):多年生草本,高24-40厘米。叶均基生,具长柄;叶片肾形至近心形,长3.3-16厘米,宽3.8-20厘米,先端钝或急尖,基部心形,7-11浅裂,浅裂片近阔卵形,边缘有不规则齿牙并具腺睫毛,腹面无毛,背面被长腺毛(腺头红褐色),具掌状达缘脉序;叶柄长5-18.5厘米,被长腺毛。花葶被红褐色卷曲长腺毛;多歧聚伞花序圆锥状,长11.5-32厘米,具多花(35花);花序分枝细弱,长6-6.5厘米,被腺毛;花梗长5-16毫米,被腺毛;苞片狭三角形,长7-8毫米,宽2-2.8毫米,腹面无毛,背面和边缘具多细胞长腺毛;萼片在花期开展至反曲,近卵形,长1-3.5毫米,宽0.9-1.5毫米,先端钝或急尖,腹面无毛,背面和边缘具腺毛,3脉于先端汇合;花瓣白色至淡红色,5枚,其中3枚较短,卵形,长1.3-4.1毫米,宽0.9-1.7毫米,先端稍渐尖或渐尖,基部圆形且具长0.2-0.3毫米之爪,边缘通常具腺睫毛,具3脉,1枚较长,狭卵形,长7.2-17.3毫米,宽2-3.5毫米,先端渐尖,边缘通常具腺睫毛,基部具长0.2-0.6毫米之爪,具3-7脉,另1枚最长,狭卵形,长12-23.5毫米,宽2.8-6.5毫米,先端渐尖或稍渐尖,基部渐狭成长0.6-1.5毫米之爪,边缘通常具腺睫毛和锯齿,具3-8(-14)脉;雄蕊长4-5毫米,花丝棒状;2心皮中下部合生,长3.2-4毫米;子房卵球形,花柱2,稍叉开。蒴果弯垂,长约6.7毫米,2果瓣叉开。花期6-7月。
分布(Distribution):产湖北和四川,生于海拔2200-2900米的林下或石隙。
用途(Use):
引自中国植物志英文版:FOC Vol. 8 Page 286
Saxifraga fortunei J. D. Hooker, Bot. Mag. t. 5377. 1863.
齿瓣虎耳草 chi ban hu er cao| Saxifragaceae  | Saxifraga
Plants 24-40 cm tall. Petiole 5-18.5 cm, glandular villous; leaf blade reniform to subcordate, 3.3-16 × 3.8-20 cm, abaxially glandular villous, palmately veined, base cordate, margin 7-11-lobed; lobes broadly ovate, margin irregularly dentate, glandular ciliate, apex obtuse or acute. Scape red-brown crisped glandular villous. Inflorescence paniculate, 11.5-32 cm, ca. 35-flowered; branches slender, 6-6.5 cm, glandular hairy; bracts narrowly triangular, 7-8 mm, abaxially and marginally glandular villous. Sepals spreading to reflexed, subovate, 1-3.5 × 0.9-1.5 mm, abaxially (or both surfaces) and marginally glandular hairy, veins 3 and confluent at apex or 1, apex obtuse or acute. Petals 5, white to reddish; shortest 3 petals ovate, 1.3-4.1 × 0.9-1.7 mm, 3-veined, base rounded, with a claw 0.2-0.3 mm, margin glandular ciliate or glabrous, apex subacuminate or acuminate; longer petal narrowly ovate, 0.7-1.7 cm × 2-5.3 mm, 3-7-veined, base with a claw 0.2-0.6 mm, margin glandular ciliate or glabrous, apex acuminate; longest petal narrowly ovate, 1.2-2.4 cm × 2.8-6.5 mm, 3-8(-14)-veined, base gradually contracted into a claw 0.6-1.5 mm, margin serrate or entire, glandular ciliate or glabrous, apex acuminate or subacuminate. Stamens 4-5 mm. Carpels 3.2-4 mm; ovary ovoid; styles divergent. Fl. Jun-Jul.
Forests, rock crevices; 2200-2900 m. Hubei, S Jilin, Liaoning, Sichuan [Korea].
华中虎耳草Saxifraga fortunei(责任编辑:徐晔春)

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