形态描述
落叶或半常绿灌木，高达4m；树皮灰褐色或灰白色；芽、幼技、叶柄及花序均密被灰白色或黄白色簇状短毛，后渐无毛。叶纸质，卵形至椭圆形或卵状矩圆形，长5-11cm，宽2-5cm，顶端钝或稍尖，基部圆或有时微心形，边缘有小齿，两面或至少下面被簇状短毛，侧脉5-6对，近缘前互相网结，连同中脉上面略凹陷，下面凸起；叶柄长10-15mm。聚伞花序直径8-15cm，全部由大型不孕花组成，总花梗长1-2cm，第一级辐射枝5条，花生于第三级辐射枝上；萼筒筒状，长约2.5mm，无毛，萼齿与萼筒几等长，矩圆形，先端钝；花冠白色，辐状，直径1.5-4cm，裂片圆状倒卵形，筒部甚短；雄蕊长约3mm，花药小，近圆形；雌蕊不育。花期4-5月。
分布地区
杭州各城区常见栽培，生于山坡、林下。分布于安徽、河南、湖北、湖南、江苏、江西和山东。
主要用途
可作园林观赏，也可用作插花。
中国植物志英文版
Viburnum macrocephalum var. sterile Dippel. Shrubs, deciduous or semievergreen, to 4 m tall. Bark gray-brownish or gray-whitish. Branchlets of current year densely gray-whitish or yellow-whitish stellate-pubescent, glabrescent; branchlets of previous year gray-brownish or gray-whitish, terete, glabrous, with dispersed, small, rounded lenticels. Winter buds naked, densely gray-whitish or yellow-whitish stellate-pubescent. Leaves always opposite, not clustered at apices of branchlets; stipules absent; petiole green, robust, 1-1.5 cm, gray-whitish or yellow-whitish stellate-pubescent; leaf blade greenish white when young, ovate to elliptic or ovate-elliptic, 5-11 × 2-5 cm, papery, abaxially stellate-pubescent, adaxially densely stellate-pubescent at first, later only so on midvein, midvein raised abaxially, lateral veins 5- or 6-jugate, pinnate, arched, branched, anastomosing near margin, raised abaxially, slightly impressed adaxially, veinlets transverse, slightly raised or inconspicuous abaxially, inconspicuous adaxially, not lobed, base rounded or sometimes slightly cordate, without glands, margin denticulate, apex obtuse or slightly acute. Flowers appearing after leaves; inflorescence a compound umbel-like cyme, terminal, 8-15 cm in diam.; rays whorled; first node of inflorescence with 5 rays, dense, gray-whitish or yellow-whitish stellate-pubescent, totally composed of large sterile flowers, or of fertile flowers yet with 8-18 large sterile radiant flowers; peduncle 1-2 cm; bracts caducous, leaflike, green, linear-lanceolate, stellate-pubescent; bracteoles linear. Flowers on rays of 3rd order, not fragrant, sessile or shortly pedicellate. Sterile flowers: calyx like fertile flowers; corolla white, rotate, 1.5-4 cm in diam., glabrous; lobes orbicular-obovate, apex rounded; stamens and pistils not developed. Fertile flowers: calyx greenish; tube tubular, ca. 2.5 mm, glabrous; lobes oblong, small, ca. 2 mm, nearly as long as calyx tube, glabrous, apex obtuse; corolla white, rotate, 10-12 mm in diam., glabrous; tube ca. 1 mm; lobes spreading, orbicular-obovate, ca. 2 mm, longer than tube, apex rounded, margin entire; stamens slightly taller than corolla lobes, inserted near base of corolla tube; filaments ca. 3 mm; anthers yellow, subglobose, small; styles slightly exceeding or subequaling calyx lobes; stigmas capitate. Fruit initially turning red, maturing black, elliptic, ca. 12 mm, base rounded, apex rounded, glabrous; pyrenes compressed, oblong, 10-12 × 6-8 mm, with 2 shallow dorsal grooves and 3 shallow ventral grooves, apex rounded. Fl. Apr-May, fl. Sep-Oct. 2n = 18*. ● Forests, thickets on mountain slopes; 400-1000 m. W Anhui, Henan, W Hubei, Hunan, S Jiangsu, NW Jiangxi, S Shandong, Zhejiang; also commonly cultivated. Two forms may be recognized as follows. The typical form (f. macrocephalum) has its inflorescence totally composed of large sterile flowers (without anthers) and is known from cultivation only, while f. keteleeri (Carrière) Rehder (Bibl. Cult. Trees, 603. 1949; Viburnum keteleeri Carrière, Rev. Hort. 1863: 269. 1863; V. arborescens Hemsley; V. macrocephalum var. keteleeri (Carrière) G. Nicholson; V. macrocephalum var. indutum Handel-Mazzetti) is the wild-related taxa and has its inflorescence with 8-18 large sterile radiant flowers (without anthers) only at margin and fertile flowers (with stamens) at center. Also commonly cultivated, the latter also occurs in forests, thickets on mountain slopes, at 400-1000 m, in W Anhui, W Hubei, Hunan, S Jiangsu, NW Jiangxi, and Zhejiang.----from “Flora of China”