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黄刺玫Rosa xanthina

时间:2013-11-06 14:26来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 黄刺玫 学名( Scientific Name ): Rosa xanthina Lindl. 英文名( English Common Name ): yellow rose 别名( Chinese Common Name ): 黄刺莓 异名( Synonym ): 科属( Family Genus ): 蔷薇科(Rosaceae)蔷薇属
中文名(Chinese Name):黄刺玫
学名(Scientific Name):Rosa xanthina Lindl.
英文名(English Common Name):yellow rose
别名(Chinese Common Name):黄刺莓
异名(Synonym):
科属(Family & Genus):蔷薇科(Rosaceae)蔷薇属
形态特征(Description):直立灌木,高2-3米;枝粗壮,密集,披散;小枝无毛,有散生皮刺,无针刺。小叶7-13,连叶柄长3-5厘米;小叶片宽卵形或近圆形,稀椭圆形,先端圆钝,基部宽楔形或近圆形,边缘有圆钝锯齿,上面无毛,幼嫩时下面有稀疏柔毛,逐渐脱落;叶轴、叶柄有稀疏柔毛和小皮刺;托叶带状披针形,大部贴生于叶柄,离生部分呈耳状,边缘有锯齿和腺。花单生于叶腋,重瓣或半重瓣,黄色,无苞片;花梗长1-1.5厘米,无毛,无腺;花直径3-4(-5)厘米;萼筒、萼片外面无毛,萼片披针形,全缘,先端渐尖,内面有稀疏柔毛,边缘较密;花瓣黄色,宽倒卵形,先端微凹,基部宽楔形;花柱离生,被长柔毛,稍伸出萼筒口外部,比雄蕊短很多。果近球形或倒卵圆形,紫褐色或黑褐色:直径8-10毫米,无毛,花后萼片反折。花期4-6月,果期7-8月。
分布(Distribution):东北、华北各地庭园习见栽培。
用途(Use):
引自中国植物志英文版:FOC Vol. 9 Page 352     
Rosa xanthina Lindley, Ros. Monogr. 132. 1820.
黄刺玫 huang ci mei| Rosaceae  | Rosa
Rosa xanthinoides Nakai.
Shrubs erect, 2–3 m tall. Branchlets diffuse, dense, glabrous, robust when old; prickles paired below some leaves, frequently opposite elsewhere, straight, to 1.2 cm, stout, flat, abruptly flaring to an elliptic base, small prickles and bristles absent. Leaves including petiole 3–5 cm; stipules mostly adnate to petiole, free parts linear-lanceolate, margin serrate and glandular; rachis and petiole sparsely pubescent, sometimes with small prickles; leaflets 7–13, broadly ovate or suborbicular, rarely elliptic, 6–18 × 5–10 mm, abaxially sparsely pubescent when young, glabrescent, adaxially glabrous, base broadly cuneate or subrounded, margin crenate or obtusely serrate, apex rounded-obtuse. Flower solitary, axillary, 3–4(–5) cm in diam.; pedicel 1–1.5 cm, glabrous, not glandular; bracts absent. Hypanthium subglobose or obovate, abaxially glabrous. Sepals 5, lanceolate, abaxially glabrous, adaxially sparsely pubescent, margin entire, apex acuminate. Petals 5 or double, yellow, broadly obovate, base broadly cuneate, apex emarginate. Styles free, much shorter than stamens, slightly exserted, villous. Hip purple-brown or black-brown, subglobose or obovoid, 8–10 mm in diam., glabrous, with persistent, reflexed sepals; pedicel 1–1.5 cm, glabrous. Fl. Apr–Jun, fr. Jul–Aug. 2n = 14*.
Scrub, open slopes. Gansu, Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Shaanxi, Shandong, Shanxi; also frequently cultivated in N and NE China.
Two forms may be recognized: Rosa xanthina f. normalis Rehder & E. H. Wilson (in Sargent, Pl. Wilson. 2: 342. 1915; R. xanthina f. spontanea Rehder), which has single flowers with 5 petals, and f. xanthina, which has double or semidouble flowers and is frequently planted in gardens and parks.
 


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