青荚叶Helwingia japonica

中文名(Chinese Name):青荚叶
学名(Scientific Name):Helwingia japonica  (Thunb.) Dietr.
英文名(English Common Name):
别名(Chinese Common Name):叶上珠
异名(Synonym):Helwingia japonica var. szechuanensis (Fang) Fang et Soong  Helwingia szechuanensis W. P. Fang  Osyris japonica Thunb. ex Murray  Helwingia rusciflora Willd.
科属(Family & Genus):山茱萸科(Cornaceae)青荚叶属
形态特征(Description):落叶灌木,高1-2米;幼枝绿色,无毛,叶痕显著。叶纸质,卵形、卵圆形,稀椭圆形,长3.5-9(-18)厘米,宽2-6(-8.5)厘米,先端渐尖,极稀尾状渐尖,基部阔楔形或近于圆形,边缘具刺状细锯齿;叶上面亮绿色,下面淡绿色;中脉及侧脉在上面微凹陷,下面微突出;叶柄长1-5(-6)厘米;托叶线状分裂。花淡绿色,3-5数,花萼小,花瓣长1-2毫米,镊合状排列;雄花4-12,呈伞形或密伞花序,常着生于叶上面中脉的1/2-1/3处,稀着生于幼枝上部;花梗长1-2.5毫米;雄蕊3-5,生于花盘内侧;雌花1-3枚,着生于叶上面中脉的1/2-1/3处;花梗长1-5毫米;子房卵圆形或球形,柱头3-5裂。浆果幼时绿色,成熟后黑色,分核3-5枚。花期4-5月;果期8-9月。
分布(Distribution):产黄河流域以南各省区,生于海拔3300米以下的林中。日本、缅甸、印度也有。
用途(Use):全株药用,有清热、解毒、活血、消肿的疗效;我国民间或用作阴症药。
引自中国植物志英文版FOC Vol. 14 Page 227      
Helwingia japonica (Thunberg) F. Dietrich, Nachtr. Vollst. Lex. Gärtn. 3: 660. 1817.
青荚叶 qing jia ye| Helwingiaceae  | Helwingia
 Helwingia japonica
Credit: Harvard University Herbaria
Shrubs 1–2 m tall, deciduous; bark dark brown or grayish black, smooth; young branches green, glabrous, smooth, with conspicuous leaf scars. Leaf petiole 1–5(–6) cm; stipules threadlike, divided apically or rarely undivided; leaf blade abaxially light green, grayish white, or glaucous green, ovate, obovate-elliptic, ovate-rounded, rarely elliptic or ovate lanceolate, 3.5–9(–18) × 2–6(–8.5) cm, papery, glabrous, veins 5–7(or 8), conspicuous, raised abaxially, slightly impressed adaxially, base broadly cuneate or ± rounded, margin spiculate serrate to spiculate crenate, apex acuminate, rarely caudate-acuminate. Umbels between middle and lower 1/3 of midvein, rarely on upper part of young branches; staminate umbels 3–12(–18)-flowered; carpellate umbels 1–3-flowered. Flowers pedicellate. Petals light green, 1–5 mm. Carpellate flowers: style 3–5-divided. Fruit subglobose or ellipsoid, ca. 4–8 mm in diam., nearly sessile. Seeds 3–5, lobes 3–5. Fl. Apr–May, fr. Aug–Oct.
Forests, woods, thickets, valleys, slopes, streamsides, roadsides; 100–3400 m. Anhui, Fujian, SE Gansu, Guangdong, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangsu, Jiangxi, S Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, Japan, S Korea, N Myanmar].
Helwingia rusciflora Hemsley (J. Linn. Soc., Bot. 23: 341. 1888, not Willdenow, 1806) is based on a mixed collection, of which part is H. japonica var. japonica and part is var. hypoleuca.


青荚叶Helwingia japonica

青荚叶Helwingia japonica


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