陇东海棠Malus kansuensis (Batal.) Schneid.

别名：花叶杜梨;楸子树;白石枣;大石枣;大石栆;甘肃海棠;甘肃苹果;光叶陇东海棠;野海棠果;三中海棠;陇冬海棠;山楂;花叶海棠;

科名：蔷薇科 Rosaceae

属名：苹果属 Malus

《中国植物志》第36卷389页
  13. 陇东海棠（中国树木分类学）大石枣（甘肃武山土名），甘肃海棠（华北经济植物志要）
  Malus kansuensis (Batal.) Schneid. in Fedde, Repert. Sp. Nov. 3: 178. 1906 & Ill. Handb. Laubh. 2: 1001. 1912; Rehd. in Sarg. Pl. Wils. 2: 286. 1915 & in Journ. Arn. Arb. 5: 193. 1924 & in Journ. Arn. Arb. 9: 70. 1928; 陈嵘, 中国树木分类学423. 1937; 俞德浚、阎振茏, 植物分类学报5: 98. 图版13. 1956; 中国高等植物图鉴2: 238. 图2206. 1972. ——Pyrus kansuensis Batal. in Acta Hort. Petrop. 13: 94. 1893. ——Eriolobus kansuensis Schneid. Ill. Handb. Laubh. 1: 726. 1906; Koidz. in Acta Phytotax. Geobot. 3: 196. 1934.
种中文名：陇东海棠
种拉丁名：Malus kansuensis (Batal.) Schneid.
种别名  ：大石枣(甘肃武山土名)，甘肃海棠(华北经济植物志要)
国内分布：甘,豫,陕,川
海    拔：1500-3000
命名来源：(中国树木分类学)[Fedde. Repert. Sp. Nov. 3: 178. 1906]
中国植物志：36:389
英文植物志：9:186
系中文名：陇东海棠系
系拉丁名：Ser．Kansuenses
组中文名：花楸苹果组
组拉丁名：Sect．Sorbomalus Zabel
属中文名：苹果属
属拉丁名：Malus
亚科中文名：苹果亚科
亚科拉丁名：Maloideae Weber
科中文名：蔷薇科
科拉丁名：Rosaceae
纲中文名：双子叶植物纲
纲拉丁名：DICOTYLEDONAE
门中文名：被子植物门
门拉丁名：ANGIOSPERMAE
参考文献：Malus kansuensis(Batal．)Schneid．In Fedde，Repert．SP．Nov．3：178．1906 &Ill Handb,Laubh；2：1001．1912；Rehd．In Sarg；Pl_—-Wils．2：286．1915 & in JournArn．Arb．5：193．1924&in Journ．Am．Arb．9：70．1928；陈嵘，中国树木分类学423．1937；俞德浚、阎振茏，植物分类学报5：98．图版13．1956；中国高等植物图鉴2：238．图2206．1972．----Pyrus kansuensis Batal．In Acta Hort．Petrop．13：94．1893.-----Eriolobus kansuensis Schneid．Ill．Handb．Laubh．1：726．1906；Koidz．InActa Phytotax．Geobot．3：196．1934．

《Flora of China》 Vol. 9 (2003)
Malus kansuensis  (Batalin) C. K. Schneider
陇东海棠   long dong hai tang
Shrubs or small trees, 3–5 m tall; branchlets purplish brown or dark brown when old, terete, puberulous when young, glabrous when old; buds dark purple, ovoid; scales tomentose at margin. Stipules linear-lanceolate, 6–10 mm, herbaceous, sparsely pubescent, margin sparsely glandular denticulate, apex acuminate; petiole 1.5–4 cm, sparsely puberulous; leaf blade ovate or broadly ovate, 5–8 × 4–6 cm, abaxially sparsely puberulous or glabrous, base rounded or truncate, margin doubly serrulate, often 3-lobed, rarely irregularly or not lobed, apex acute or acuminate. Corymb 5–6.5 cm in diam., 4–10-flowered; bracts caducous, linear-lanceolate, membranous, margin entire, apex acuminate. Pedicel 2.5–3.5 cm, sparsely pubescent or glabrous. Flowers 1.5–2 cm in diam. Hypanthium campanulate, abaxially villous or glabrous. Sepals triangular-ovate or triangular-lanceolate, 5–6 mm, ca. as long as or slightly longer than hypanthium, abaxially glabrous, adaxially villous, margin entire, apex acuminate. Petals white, broadly obovate, 0.8–1 cm, base shortly clawed, apex rounded. Stamens 20, unequal, ca. 1/2 as long as petals. Styles (2 or)3(or 4), slightly longer than stamens, glabrous basally. Pome yellowish red, ellipsoid or obovoid, 1–1.5 cm in diam.; sepals caducous; fruiting pedicel 2–3.5 cm. Fl. May–Jun, fr. Jul–Aug. 2n = 34*.
Mixed forests, scrub; 1500--3300 m. Gansu, Henan, Hubei, ?Qinghai, Shaanxi, Sichuan.
This species is similar to Malus honanensis, which differs in its more lobed leaf margin, glabrous or sparsely villous corymb, and subglobose fruit often with a persistent calyx.