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黄花花杜鹃 huanghuahuadujuan(黄花杜鹃、柠檬杜鹃)

被子植物门 Angiospermae
双子叶植物纲 Dicotyledoneae
合瓣花亚纲 Sympetalae
杜鹃花目 Ericales
杜鹃花科 Ericaceae
杜鹃属 Rhododendron
相关名称 Common Names
拉丁名
Rhododendron boothii Nutt.
中文名
黄花花杜鹃
拼音
huanghuahuadujuan
别名
黄花杜鹃、柠檬杜鹃
文献 Literature
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描述 Description

135. 黄花花杜鹃(新拟) 柠檬杜鹃(西藏植物志),黄花杜鹃(横断山区维管植物) 图版34: 5-6

Rhododendron boothii Nutt. in Hooker's Kew Journ. 5: 346. 1853; Hook. f. in Curtis's Bot. Mag. 116: t. 7149. 1890; Hutch. in Stevenson, Spec. Rhodod. 159. 1930; Cowan et Davidan in R. H. S. Rhodod. Year Book, 3: 62. 1948; Cullen in Not. Bot. Gard. Edinb. 39: 134. 1980; Davidian, Rhodod. Spec. 1: 70. 1982; 西藏植物志 3: 642. 图版256, 7-8. 1986; 横断山区维管植物下册 1440. 1994. ——R. mish-miense Hutch. et K. Ward in Not. Bot. Gard. Edinb. 16: 173. 1931.

常绿附生灌木,高1.5-2.5(-3)米。幼枝密被刚毛或绵毛,有鳞片。叶芽鳞早落。叶厚革质,卵形、狭卵形至卵状椭圆形,长7-13厘米,宽3-7厘米,先端渐尖或锐尖,基部圆形或钝,边缘及中脉和侧脉被毛,上面绿色,有时有光泽,无鳞片,下面苍白色,密被鳞片,鳞片不等大,大小多变,深褐色,相距为其直径;叶柄长6-10毫米,密被绵毛或刚毛和鳞片。花序顶生,短总状或伞形,有花(3-)7-10朵;花梗长1.3-2厘米,被疏或密的刚毛,有鳞片;花萼大,深5裂,裂片长(7-)10-15毫米,圆形、卵形至长圆形,外面被鳞片,边缘有睫毛或无;花冠宽钟状,长约3厘米,亮柠檬黄色,无斑点,裂片5,圆形,开展,外面密被鳞片,花管长约1.5厘米,内面被柔毛;雄蕊10,不等长,花丝下半部被柔毛;子房5-6室,密被鳞片,花柱短,粗壮而强度弯弓,基部有鳞片。蒴果卵形或卵状长圆形,长1-1.7厘米,有鳞片,花萼裂片稍增大,宿存。花期4-5月。

产西藏东南部。生于山坡阔叶林中或附生于栎树上,有时附生于岩壁,海拔2 000-2 500米。不丹、印度东北部也有。

知识共享:署名-非商业性使用-禁止演绎 1999《中国植物志》第57(1)卷 153页 PDF

Shrubs, evergreen, usually epiphytic, 1.5–2.5(–3) m tall; branchlets scaly, densely setose. Petiole 6–10 mm, scaly, setose; leaf blade thick and leathery, ovate, narrowly ovate to ovate-elliptic, 7–13 × 3–7 cm; base rounded or obtuse; margin ciliate; apex acuminate or acute; abaxial surface pale glaucous-green, scales ca. 1 × their own diameter apart, unequal, dark brown; adaxial surface green, somewhat shiny, without scales, setose on midrib and veins. Inflorescence (3–)7–10-flowered. Pedicel 1.3–2 cm, setose; calyx green; lobes (7–)10–15 mm, rounded, ovate to oblong, persisting to enclose mature capsule, scaly, margin ciliate; corolla broadly campanulate, bright yellow, sometimes spotted, ca. 3 cm, tube 15–17 mm, outer surface scaly, inner surface pilose, lobes spreading, rounded; stamens 10, filaments pubescent towards base for 1/3–1/2 of their length; ovary densely scaly; style stout, sharply bent, short, scaly at base. Capsule ovoid or ovoid-cylindric, 10–17 mm, scaly. Fl. Apr–May, fr. Jun–Jul.

Forests, scrub, rocks, sometimes epiphytic; 2000–2500 m. SE Xizang [NE India].

知识共享:署名-非商业性使用-禁止演绎 FOC Vol.14PDF
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