翻白叶树Pterospermum heterophyllum
中文名（Chinese Name）：翻白叶树
学名（Scientific Name）：Pterospermum heterophyllum Hance
英文名（English Common Name）：
别名（Chinese Common Name）：异叶翅子木
异名（Synonym）：Pterospermum levinei Merr.
科属（Family & Genus）：梧桐科（Sterculiaceae）翅子树属
形态特征（Description）：乔木，高达20米；树皮灰色或灰褐色；小枝被黄褐色短柔毛。叶二形，生于幼树或萌蘖枝上的叶盾形，直径约15厘米，掌状3-5裂，基部截形而略近半圆形，上面几无毛，下面密被黄褐色星状短柔毛；叶柄长12厘米，被毛；生于成长的树上的叶矩圆形至卵状矩圆形，长7-15厘米，宽3-10厘米，顶端钝、急尖或渐尖，基部钝、截形或斜心形，下面密被黄褐色短柔毛；叶柄长1-2厘米，被毛。花单生或2-4朵组成腋生的聚伞花序；花梗长5-15毫米，无关节；小苞片鳞片状，与萼紧靠；花青白色；萼片5枚，条形，长达28毫米，宽4毫米，两面均被柔毛；花瓣5片，倒披针形，与萼片等长；雌雄蕊柄长2.5毫米；雄蕊15枚，退化雄蕊5枚，线状，比雄蕊略长；子房卵圆形，5室，被长柔毛，花柱无毛。蒴果木质，矩圆状卵形，长约6厘米，宽2-2.5厘米，被黄褐色绒毛，顶端钝，基部渐狭，果柄粗壮，长1-1.5厘米；种子具膜质翅。花期秋季。
分布（Distribution）：产广东、海南、福建、广西等地，现华南各地有栽培。
用途（Use）：根可供药用，为治疗风湿性关节炎的药材，可浸酒或煎汤服用。本种的枝皮可剥取以编绳。本种也可以放养紫胶虫。
引自中国植物志英文版：FOC Vol. 12 Page 327, 329
Pterospermum heterophyllum Hance, J. Bot. 6: 112. 1868.
翻白叶树 fan bai ye shu| Sterculiaceae | Pterospermum
Pterospermum levinei Merrill.
Trees, to 20 m tall; bark gray or gray-brown. Branchlets yellow-brown pilose. Petiole 1-2 cm, hairy; leaf blade oblong-ovate to oblong, 7-15 × 3-10 cm, abaxially densely yellow-brown stellate pubescent, adaxially nearly glabrous; base obtuse, truncate or obliquely cordate, apex acute or acuminate; juvenile and coppice leaves: petiole ca. 12 cm, leaf blade palmately 3-5-lobed, ca. 15 cm in diam., base conspicuously peltate, truncate or slightly rounded. Flowers solitary or in cymes of 2-4; pedicel 0.5-1.5 cm; epicalyx lobes closely adnate to calyx, scalelike. Sepals linear, up to 2.8 × 0.4 cm, both surfaces puberulent. Petals greenish white, oblanceolate, as long as sepals. Androgynophore ca. 2.5 mm; staminodes filiform, slightly longer than stamens. Ovary ovoid, villous; style glabrous. Capsule woody, cylindrical-ovoid, ca. 6 × 2-2.5 cm, yellow tomentose, base tapering into robust, 1-1.5 cm stipe, apex obtuse. Fl. autumn.
● Fujian, Guangdong, Guangxi, Hainan.
The roots of Pterospermum heterophyllum are of medicinal use. The epithet refers to the great contrast in form between juvenile and mature leaves but this is not unique to this species.
（责任编辑：徐晔春）
学名（Scientific Name）：Pterospermum heterophyllum Hance
英文名（English Common Name）：
别名（Chinese Common Name）：异叶翅子木
异名（Synonym）：Pterospermum levinei Merr.
科属（Family & Genus）：梧桐科（Sterculiaceae）翅子树属
形态特征（Description）：乔木，高达20米；树皮灰色或灰褐色；小枝被黄褐色短柔毛。叶二形，生于幼树或萌蘖枝上的叶盾形，直径约15厘米，掌状3-5裂，基部截形而略近半圆形，上面几无毛，下面密被黄褐色星状短柔毛；叶柄长12厘米，被毛；生于成长的树上的叶矩圆形至卵状矩圆形，长7-15厘米，宽3-10厘米，顶端钝、急尖或渐尖，基部钝、截形或斜心形，下面密被黄褐色短柔毛；叶柄长1-2厘米，被毛。花单生或2-4朵组成腋生的聚伞花序；花梗长5-15毫米，无关节；小苞片鳞片状，与萼紧靠；花青白色；萼片5枚，条形，长达28毫米，宽4毫米，两面均被柔毛；花瓣5片，倒披针形，与萼片等长；雌雄蕊柄长2.5毫米；雄蕊15枚，退化雄蕊5枚，线状，比雄蕊略长；子房卵圆形，5室，被长柔毛，花柱无毛。蒴果木质，矩圆状卵形，长约6厘米，宽2-2.5厘米，被黄褐色绒毛，顶端钝，基部渐狭，果柄粗壮，长1-1.5厘米；种子具膜质翅。花期秋季。
分布（Distribution）：产广东、海南、福建、广西等地，现华南各地有栽培。
用途（Use）：根可供药用，为治疗风湿性关节炎的药材，可浸酒或煎汤服用。本种的枝皮可剥取以编绳。本种也可以放养紫胶虫。
引自中国植物志英文版：FOC Vol. 12 Page 327, 329
Pterospermum heterophyllum Hance, J. Bot. 6: 112. 1868.
翻白叶树 fan bai ye shu| Sterculiaceae | Pterospermum
Pterospermum levinei Merrill.
Trees, to 20 m tall; bark gray or gray-brown. Branchlets yellow-brown pilose. Petiole 1-2 cm, hairy; leaf blade oblong-ovate to oblong, 7-15 × 3-10 cm, abaxially densely yellow-brown stellate pubescent, adaxially nearly glabrous; base obtuse, truncate or obliquely cordate, apex acute or acuminate; juvenile and coppice leaves: petiole ca. 12 cm, leaf blade palmately 3-5-lobed, ca. 15 cm in diam., base conspicuously peltate, truncate or slightly rounded. Flowers solitary or in cymes of 2-4; pedicel 0.5-1.5 cm; epicalyx lobes closely adnate to calyx, scalelike. Sepals linear, up to 2.8 × 0.4 cm, both surfaces puberulent. Petals greenish white, oblanceolate, as long as sepals. Androgynophore ca. 2.5 mm; staminodes filiform, slightly longer than stamens. Ovary ovoid, villous; style glabrous. Capsule woody, cylindrical-ovoid, ca. 6 × 2-2.5 cm, yellow tomentose, base tapering into robust, 1-1.5 cm stipe, apex obtuse. Fl. autumn.
● Fujian, Guangdong, Guangxi, Hainan.
The roots of Pterospermum heterophyllum are of medicinal use. The epithet refers to the great contrast in form between juvenile and mature leaves but this is not unique to this species.
（责任编辑：徐晔春）
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