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香花白杜鹃

中文名:香花白杜鹃

拼 音:xiāng huā bái dù juān

学 名:Rhododendron ciliipes

Hutch. (1930)

界:植物界

亚 界:绿色植物亚界

总 门:轮藻总门

门:木贼门(有胚植物门)

亚 门:木贼亚门(维管植物亚门)

纲:木兰纲(被子植物纲)

亚 纲:蔷薇亚纲

超 目:菊超目

目:杜鹃花目

科:杜鹃花科

属:杜鹃花属

种:香花白杜鹃

香花白杜鹃(学名:Rhododendron ciliipes Hutch.)是灌木,生于杂木林中、山脊松林下、陡岩或山谷边腐殖土覆盖的砾石上,海拔2500-3000米。产自云南西至西北部。 [1]

香花白杜鹃形态特征

香花白杜鹃 灌木,高1-2米。幼枝密被褐色刚毛和鳞片,老枝灰色,无毛也无鳞片。

叶片长圆形、卵形或卵状椭圆形,长4-7.5厘米,宽2-3.5厘米,顶端骤然渐尖或钝尖,基部圆形或稍狭而成宽楔形,叶缘密生细长纤毛,以后脱落,上面或多或少散生鳞片,下面淡绿色,被黄褐色鳞片,鳞片大小不一,相距为其直径的1-2倍,中脉在上面略下陷,在下面凸起,侧脉7-8对,纤细,在两面均不明显;叶柄短,长5-8毫米,被鳞片和刚毛。

花序顶生,1(-2)花;花梗长0.6-1厘米,密被鳞片;花萼不发育呈环状,或发育长2-6毫米,外面密被鳞片,边缘密生长睫毛或近无毛;花冠芳香,宽漏斗状,长5.5-7厘米,白色带淡红晕,内面基部有黄绿色斑块,外面被鳞片,筒部被灰白色短柔毛;雄蕊10,不等长,长达花冠裂片中部,花丝下部被柔毛;子房6室,密被鳞片,花柱与花冠近等长或伸出花冠,下半部疏被鳞片。

蒴果长圆状卵形,长1.5-2厘米,密被褐色鳞片。花期4-5月,果期7月以后。

Shrubs, 1–2 m tall; old branches gray, glabrous; young shoots scaly, densely brown-hispid. Petiole 5–8 mm, scaly, hispid; leaf blade oblong, ovate or ovate-elliptic, 4–7.5 × 2–3.5 cm; base rounded or broadly cuneate; apex acute or acuminate; abaxial surface pale green, scales 1–2 × their own diameter apart, brown; adaxial surface sparsely scaly; midrib flat raised abaxially, slightly concave adaxially; lateral veins 7–8-paired, thin, inconspicuous on both sides. Inflorescence terminal, 1(or 2)-flowered; bractlets present at anthesis, linear-spathulate, longer than pedicel, densely white-pubescent outside. Flowers fragrant. Pedicel 0.6–1 cm, densely scaly; calyx undeveloped or 2–6 mm, scaly abaxially, dense; corolla broadly funnelform, white tinged with red, with yellowish green markings at base within, 5.5–7 cm, outer surface scaly, tube gray-white-pubescent; stamens 10, unequal, half as long as corolla; filaments pubescent below; ovary 6-locular, densely scaly; style as long as corolla or slightly longer, basal half sparsely scaly. Capsule cylindric-ovoid, 15–20 mm, densely brown-scaly. Fl. Apr–May, fr. Jul.

Mixed forests, coniferous forests on hilltops, rocky valley sides, cliffs; 2500–3000 m. W Yunnan.

香花白杜鹃生长环境

生于杂木林中、山脊松林下、陡岩或山谷边腐殖土覆盖的砾石上,海拔2500-3000米。

香花白杜鹃分布范围

产自中国云南西至西北部。模式标本采于云南龙川江怒江分水岭,大致在腾冲境内。

参考来源

  1. 香花白杜鹃, 植物智, 2020-01-18