皱叶杜鹃Rhododendron denudatum
中文名(Chinese Name):皱叶杜鹃
学名(Scientific Name):Rhododendron denudatum Lévl.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Rhododendron xanthoneuron H. Lév.
科属(Family & Genus):杜鹃花科(Ericaceae) 杜鹃属
形态特征(Description):灌木或小乔木,高约3-6米;枝条粗壮,花序下的枝直径约5毫米,幼枝被星状绒毛,后变无毛。叶革质,长卵状披针形或椭圆状披针形,长10-16厘米,宽2.5-5厘米,先端渐尖或锐尖,有小尖头,基部宽楔形或圆形,上面有明显的皱纹,无毛,下面有疏松的淡黄色绒毛,中脉在上面下陷,在下面显著隆起,侧脉16-18对,在上面亦下陷,在下面为毛被所覆盖;叶柄圆柱形,长1-2厘米,在上面有细沟纹,被淡黄色绒毛。总状伞形花序,有花8-12朵,总轴长约5毫米,被绒毛;花梗粗壮,长1-1.5厘米,被黄褐色绒毛;花萼小,有5个波状突起,长约1毫米,外面被毛;花冠钟状,长3.5-4厘米,蔷薇色,内面有深紫色斑点,5裂,裂片近于圆形,长约1.5厘米,宽约2厘米;雄蕊10-13,长2-3厘米,不等长,花丝无毛;雌蕊3.5-4厘米;子房圆柱状,长约5-7毫米,被淡黄色绒毛,花柱长3-3.5厘米,无毛。蒴果圆柱形,长1.5-2厘米,直径6-8毫米,被黄褐色绒毛。花期4-5月,果期8-9月。
分布(Distribution):产四川西南部、贵州西北部、云南东北部。生于海拔2 000-3 300米的山坡灌木丛中。
用途(Use):
引自中国植物志英文版FOC Vol. 14 Page 370
Rhododendron denudatum H. Léveillé, Repert. Spec. Nov. Regni Veg. 13: 339. 1914.
皱叶杜鹃 zhou ye du juan | Apiaceae | Rhododendron
Rhododendron xanthoneuron H. Léveillé.
Shrubs or small trees, 3–6 m tall; branchlets stout, ca. 5 mm in diam., whitish or yellowish stellate tomentose when young, glabrescent. Petiole cylindric, 10–20 mm; leaf blade leathery, elliptic-lanceolate to ovate-lanceolate, 10–16 × 2.5–5 cm; base cuneate; apex apiculate or acuminate; abaxial surface loosely yellowish tomentose; adaxial surface rugose, glabrous, midrib prominent abaxially, impressed adaxially; lateral veins 16–18-paired, prominent abaxially, impressed adaxially. Inflorescence 8–12-flowered; rachis ca. 5 mm, tomentose. Pedicel stout, 1–2 cm, densely yellowish tomentose; calyx lobes 5, ca. 1 mm, triangular; corolla campanulate, rose, with deep crimson flecks within, 3.5–4 cm, lobes 5, suborbicular, 1.5–2 cm; stamens 10–13, 2–3 cm, filaments glabrescent; ovary cylindric, 5–7 mm, yellowish tomentose; style 3–3.5 cm, glabrous. Capsule 15–20 × 6–8 mm, yellowish brown tomentose. Fl. Apr–May, fr. Aug–Sep.
Thickets, mountain slopes; 2000–3300 m. NW Guizhou, SW Sichuan, E Yunnan.
(责任编辑:徐晔春)
学名(Scientific Name):Rhododendron denudatum Lévl.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Rhododendron xanthoneuron H. Lév.
科属(Family & Genus):杜鹃花科(Ericaceae) 杜鹃属
形态特征(Description):灌木或小乔木,高约3-6米;枝条粗壮,花序下的枝直径约5毫米,幼枝被星状绒毛,后变无毛。叶革质,长卵状披针形或椭圆状披针形,长10-16厘米,宽2.5-5厘米,先端渐尖或锐尖,有小尖头,基部宽楔形或圆形,上面有明显的皱纹,无毛,下面有疏松的淡黄色绒毛,中脉在上面下陷,在下面显著隆起,侧脉16-18对,在上面亦下陷,在下面为毛被所覆盖;叶柄圆柱形,长1-2厘米,在上面有细沟纹,被淡黄色绒毛。总状伞形花序,有花8-12朵,总轴长约5毫米,被绒毛;花梗粗壮,长1-1.5厘米,被黄褐色绒毛;花萼小,有5个波状突起,长约1毫米,外面被毛;花冠钟状,长3.5-4厘米,蔷薇色,内面有深紫色斑点,5裂,裂片近于圆形,长约1.5厘米,宽约2厘米;雄蕊10-13,长2-3厘米,不等长,花丝无毛;雌蕊3.5-4厘米;子房圆柱状,长约5-7毫米,被淡黄色绒毛,花柱长3-3.5厘米,无毛。蒴果圆柱形,长1.5-2厘米,直径6-8毫米,被黄褐色绒毛。花期4-5月,果期8-9月。
分布(Distribution):产四川西南部、贵州西北部、云南东北部。生于海拔2 000-3 300米的山坡灌木丛中。
用途(Use):
引自中国植物志英文版FOC Vol. 14 Page 370
Rhododendron denudatum H. Léveillé, Repert. Spec. Nov. Regni Veg. 13: 339. 1914.
皱叶杜鹃 zhou ye du juan | Apiaceae | Rhododendron
Rhododendron xanthoneuron H. Léveillé.
Shrubs or small trees, 3–6 m tall; branchlets stout, ca. 5 mm in diam., whitish or yellowish stellate tomentose when young, glabrescent. Petiole cylindric, 10–20 mm; leaf blade leathery, elliptic-lanceolate to ovate-lanceolate, 10–16 × 2.5–5 cm; base cuneate; apex apiculate or acuminate; abaxial surface loosely yellowish tomentose; adaxial surface rugose, glabrous, midrib prominent abaxially, impressed adaxially; lateral veins 16–18-paired, prominent abaxially, impressed adaxially. Inflorescence 8–12-flowered; rachis ca. 5 mm, tomentose. Pedicel stout, 1–2 cm, densely yellowish tomentose; calyx lobes 5, ca. 1 mm, triangular; corolla campanulate, rose, with deep crimson flecks within, 3.5–4 cm, lobes 5, suborbicular, 1.5–2 cm; stamens 10–13, 2–3 cm, filaments glabrescent; ovary cylindric, 5–7 mm, yellowish tomentose; style 3–3.5 cm, glabrous. Capsule 15–20 × 6–8 mm, yellowish brown tomentose. Fl. Apr–May, fr. Aug–Sep.
Thickets, mountain slopes; 2000–3300 m. NW Guizhou, SW Sichuan, E Yunnan.
(责任编辑:徐晔春)
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