识别要点：落叶乔木，小枝粗壮，顶芽大。叶大，叶集生枝顶，长圆状倒卵形，先端急尖或圆钝，背部有弯曲毛及白粉，侧脉整齐明显，托叶痕延至叶柄中部以上。花大，白色，聚合蓇葖。果卵状圆柱形。花期4—6月，果期8—10月。 Identify key points: deciduous trees, branchlets stout, crown. Leaves large, yeji branches, oblong-elliptic, obovate, apex acute or obtuse, back with curved hair and white powder, lateral veins neat and clear, stipular scars extended to more than petioles. Flowers large, white, aggregate follicles ellipsoid. Fruit ovoid cylinders. Flowering 4 - June, fruiting 8-10 months. 生态习性：喜光，幼树耐阴，喜温凉湿润的气候及排水良好的酸性土壤，不耐严寒酷暑、多雨及干旱。宜播种繁殖。 Ecological habits: hei, young trees resistant to Yin, thermophilic cool moist climate and well drained acid soil, no cold summer, rain and drought resistance. Seeds breeding. 观赏特性及应用：花大姿美，洁白芳香，叶大荫浓。可作庭荫树、观赏树及园路树。孤植、丛植。 Ornamental characteristics and application: spend big appearance beautiful, fragrant, white leaves the shadow of big thick. As a court shade trees, ornamental, and the garden trees. Solitary planting, clump planting. 2、二乔玉兰（朱砂玉兰、紫砂玉兰、凸头玉兰） 2, 2 yu-lan qiao (vermilion yulan, violet arenaceous yulan, convex head yulan) 识别要点：落叶小乔木，小枝紫褐色。叶互生，有时呈螺旋状，倒卵形至卵状长椭圆形，先端圆宽，平截或微凹，具短突尖，全缘。背面叶脉上有柔毛。花钟状，大而芳香，外面呈淡紫红色，内面白色。花期3月先叶开放；果期9月。 Identify the point: small trees, leaves branchlets maroon. Leaves alternate, sometimes spiraling, obovate to ovoid elliptic, apex rounded, wide flat cut or slightly concave, with short acuminate, margin entire. On the back of the villous on veins. Flowers bell-shaped, large, fragrant, is lavender red outside and white inside. March first flowering leaves open; Fruiting in September. 生态习性：喜光，耐旱性和耐寒性较强。嫁接、扦插或播种。 Ecological habits: like light, with a strong drought resistance and cold resistance. Grafting, cutting, or planting. 观赏特性及应用：花苞丰满，花大色艳，盛开时皎洁晶莹，灿烂夺目，观赏性强，是城市绿化的极好花木。广泛用于公园、绿地和庭园等孤植观赏。 Ornamental characteristics and application: bud plump, spend big color bright, in full bloom when the bright glittering and translucent and bright is dazzing, entertaining, is a great flowers and trees to urban greening. Widely used in parks, green space and garden solitary planting ornamental. 返首页：www.dingzhoumiaomu.com