中文名（Chinese Name）：华榛
学名（Scientific Name）：Corylus chinensis Franch.
英文名（English Common Name）：
别名（Chinese Common Name）：山白果
异名（Synonym）：Corylus chinensis var. macrocarpa Hu  Corylus colurna var. chinensis (Franch.) Burkill  Corylus papyracea Hickel
科属（Family & Genus）：桦木科（Betulaceae）榛属
形态特征（Description）：乔木，高可达20米；树皮灰褐色，纵裂；枝条灰褐色，无毛;小枝褐色，密被长柔毛和 刺状腺体，很少无毛无腺体，基部通常密被淡黄色长柔毛。叶椭圆形、宽椭圆形或宽卵形， 长8-18厘米，宽6-12厘米，顶端骤尖至短尾状，基部心形，两侧显著不对称，边缘具不 规则的钝锯齿，上面无毛，下面沿脉疏被淡黄色长柔毛，有时具刺状腺体，侧脉7-11对； 叶柄长1-2.5厘米，密被淡黄色长柔毛及刺状腺体。雄花序2-8枚排成总状，长2-5 厘米；苞鳞三角形，锐尖，顶端具1枚易脱落的刺状腺体。果2-6枚簇生成头状，长2-6 厘米，直径1-2.5厘米；果苞管状，于果的上部缢缩，较果长2倍，外面具纵肋，疏被长柔 毛及刺状腺体，很少无毛和无腺体，上部深裂，具3-5枚镰状披针形的裂片，裂片通常又 分叉成小裂片。坚果球形，长1-2厘米，无毛。
分布（Distribution）：。产于云南、四川西南部。生于海拔2000-3500米的湿润山坡林中。
用途（Use）：木材供建筑及制作器具，种子可食。
引自中国植物志英文版：FOC Vol. 4 Page 288     
Corylus chinensis Franchet, J. Bot. (Morot). 13: 197. 1899.
华榛 hua zhen| Betulaceae  | Corylus
Corylus chinensis var. macrocarpa Hu; C. colurna Linnaeus var. chinensis (Franchet) Burkill; C. papyracea Hickel.
Trees to 40 m tall; bark gray-brown, fissured. Branchlets purplish brown, slender, sparsely villous, stipitate glandular, glabrescent. Petiole 1-2.5 cm, densely villous, stipitate glandular; leaf blade ovate, ovate-elliptic, or obovate-elliptic, 8-18 × 6-12 cm, base obliquely cordate, margin irregularly and doubly serrate, apex mucronate or shortly caudate, abaxially bearded in axils of lateral veins, villous along veins, adaxially glabrous; lateral veins 7-11 on each side of midvein. Male inflorescences 4-6 in a cluster, cylindric, 1.5-2 cm; bracts rhombic-ovate, pubescent. Female inflorescences 2-6 in a cluster; bracts forming a tubular sheath, 2-6 cm, striate, pilose, stipitate glandular, much constricted above nut and deeply divided into linear lobes, usually forked at apex. Nut enclosed by bracts, ovoid-globose, 1-1.5 cm in diam., glabrous.
* Forests on moist mountain slopes; 1200-3500 m. Gansu, Guizhou, Hubei, Shaanxi, SW Sichuan, Xizang, NW Yunnan
This species is vulnerable because of its rarity.

（责任编辑：徐晔春）