形态描述
落叶灌木，高达2m，枝条直立开展，有刺。小枝圆柱形，疏生浅褐色皮孔。叶片卵形至椭圆形，稀长椭圆形，长3-9cm，宽1.5-5cm，先端急尖，基部楔形至宽楔形，边缘具有尖锐锯齿；叶柄长约1cm；托叶大形，草质，肾形或半圆形，长5-10mm，边缘有尖锐重锯齿。花猩红色，稀淡红色或白色，先叶开放，3-5朵簇生于二年生老枝上；花梗短粗，长约3mm，或近于无柄；花直径3-5cm；萼筒钟状，外面无毛，萼片直立，半圆形，长约萼筒之半；花瓣倒卵形或近圆形，基部延伸成短爪，长10-15mm，宽8-13mm；雄蕊45-50；花柱5。果实球形或卵球形，直径4-6cm，黄色或带黄绿色，有稀疏不显明斑点，味芳香；萼片脱落，果梗短或近于无梗。花期3-5月，果期9-10月。
分布地区
常见栽培种。分布于广东、甘肃、贵州、四川、陕西、云南，缅甸亦有。
主要用途
常见栽培种。分布于广东、甘肃、贵州、四川、陕西、云南，缅甸亦有。
中国植物志英文版
Cydonia speciosa Sweet, Hort. Suburb.-Lond. 113. 1818; Chaenomeles lagenaria (Loiseleur-Deslongchamps) Koidzumi; Cydonia japonica (Thunberg) Persoon var. lagenaria (Loiseleur-Deslongchamps) Makino; C. lagenaria Loiseleur-Deslongchamps. Shrubs deciduous, to 2 m tall, with thorns. Branchlets purplish brown or blackish brown, terete, glabrous, with pale brown lenticels; buds purplish brown, triangular-ovoid, glabrous or pubescent at margin of scales, apex obtuse. Stipules reniform or suborbicular, rarely ovate, large, 5–10 mm, herbaceous, glabrous, sharply doubly serrate at margin, apex acute; petiole ca. 1 cm, initially sparsely pubescent, glabrescent; leaf blade ovate to elliptic, rarely narrowly elliptic, 3–9 × 1.5–5 cm, glabrous or pubescent abaxially along veins on leaves of shoots, base cuneate to broadly cuneate, margin shortly serrate, apex acute or obtuse. Pedicel absent or short, ca. 3 mm, subglabrous. Flowers precocious, 3–5-fascicled on second year branchlets, 3–5 cm in diam. Hypanthium campanulate, glabrous. Sepals erect, suborbicular, rarely ovate, 3–4 mm, abaxially glabrous, adaxially pubescent. Petals scarlet, rarely pinkish or white, ovate or suborbicular, base shortly clawed, apex rounded. Stamens 40–50, ca. 1/2 as long as petals. Styles 5, ca. as long as stamens, connate at base, glabrous or slightly pubescent. Pome fragrant, yellow or yellowish green, globose or ovoid, 4–6 cm in diam.; sepals caducous; fruiting pedicel short or absent. Fl. Mar–May, fr. Sep–Oct. 2n = 34*. Fujian, Gansu, Guangdong, Guizhou, Hubei, Jiangsu, Shaanxi, Sichuan, Xizang, Yunnan [Myanmar].----from “Flora of China”
