山芝麻Helicteres angustifolia
中文名（Chinese Name）：山芝麻
学名（Scientific Name）：Helicteres angustifolia Linn.
英文名（English Common Name）：
别名（Chinese Common Name）：山油麻
异名（Synonym）：Helicteres angustifolia var. acuminatissima Kuntze Helicteres angustifolia var. gaudichaudii Kuntze Helicteres angustifolia var. meyeniana Kuntze Helicteres angustifolia var. naumanniana Kuntze Helicteres angustifolia var. obtusa (Wall. ex Kurz) Pierre Helicteres angustifolia var. virgata Kuntze Helicteres parviflora Ridl. Helicteres salicifolia C. Presl Helicteres virgata G. Don Oudemansia integerrima var. angustifolia Hassk. ex Mast. Oudemansia integerrima Miq. Oudemansia javensis var. angustifolia (L.) Hassk. Oudemansia virgata Hassk.
科属（Family & Genus）：梧桐科（Sterculiaceae）山芝麻属
形态特征（Description）：小灌木，高达1米，小枝被灰绿色短柔毛。叶狭矩圆形或条状披针形，长3.5-5厘米，宽1.51-2.5厘米，顶端钝或急尖，基部圆形，上面无毛或几无毛，下面被灰白色或淡黄色星状茸毛，间或混生纲毛；叶柄长5-7毫米。聚伞花序有2至数朵花；花梗通常有锥尖状的小苞片4枚；萼管状，长6毫米，被星状短柔毛，5裂，裂片三角形；花瓣5片，不等大，淡红色或紫红色，比萼略长，基部有2个耳状附属体；雄蕊10枚，退化雄蕊5枚，线形，甚短；子房5室，被毛，较花柱略短，每室有胚珠约10个。蒴果卵状矩圆形，长12-20毫米，宽7-8毫米，顶端急尖，密被星状毛及混生长绒毛；种子小，褐色，有椭圆形小斑点。花期几乎全年。
分布（Distribution）：产湖南、江西、广东、广西、云南、福建，常生于草坡上。印度、缅甸、马来西亚、泰国、越南、老挝、柬埔寨、印度尼西亚、菲律宾等地有分布。
用途（Use）：本种的茎皮纤维可做混纺原料，根可药用，叶捣烂敷患处可治疮疖。
引自中国植物志英文版：FOC Vol. 12 Page 318, 319
Helicteres angustifolia Linnaeus, Sp. Pl. 2: 963. 1753.
山芝麻 shan zhi ma| Sterculiaceae | Helicteres
Small shrubs, up to 1 m tall. Branchlets gray greenish puberulent. Petiole 5-7 mm; leaf blade narrowly oblong or linear-lanceolate, 3.5-5 × 1.5-2.5 cm, glabrous or nearly so adaxially, gray or yellowish stellate tomentose, or sometimes also hirsute abaxially, base rounded, apex obtuse or acute. Inflorescence cymose, 2- or many-flowered. Pedicel usually with 4 pointed bracteoles. Calyx tube-shaped, ca. 6 mm, stellate puberulent, 5-lobed, lobes triangular. Petals 5, unequal in length, pale blue, pink, or purplish, darker at base of limb, slightly longer than calyx, reflexed at anthesis, uniformly pubescent, claws 2-auriculate. Staminodes linear, very short. Ovary 5-celled, hairy, slightly shorter than style; ovules ca. 10 in each locule. Capsule ovoid-oblong, 12-20 × 7-8 mm, densely setose, setae relatively slender, sparsely hairy, apex acute. Seeds small, brown, with elliptic spots. Fl. almost throughout year.
Sloping grasslands. S Fujian, Guangdong, C and S Guangxi, Hainan, Hunan, Jiangxi, Taiwan, S Yunnan [Cambodia, Indonesia, Japan, Laos, Malaysia, Myanmar, Philippines, Thailand, Vietnam; Australia].
The bark is a source of useful fibers, and the roots and leaves are used medicinally.
（责任编辑：徐晔春）
学名（Scientific Name）：Helicteres angustifolia Linn.
英文名（English Common Name）：
别名（Chinese Common Name）：山油麻
异名（Synonym）：Helicteres angustifolia var. acuminatissima Kuntze Helicteres angustifolia var. gaudichaudii Kuntze Helicteres angustifolia var. meyeniana Kuntze Helicteres angustifolia var. naumanniana Kuntze Helicteres angustifolia var. obtusa (Wall. ex Kurz) Pierre Helicteres angustifolia var. virgata Kuntze Helicteres parviflora Ridl. Helicteres salicifolia C. Presl Helicteres virgata G. Don Oudemansia integerrima var. angustifolia Hassk. ex Mast. Oudemansia integerrima Miq. Oudemansia javensis var. angustifolia (L.) Hassk. Oudemansia virgata Hassk.
科属（Family & Genus）：梧桐科（Sterculiaceae）山芝麻属
形态特征（Description）：小灌木，高达1米，小枝被灰绿色短柔毛。叶狭矩圆形或条状披针形，长3.5-5厘米，宽1.51-2.5厘米，顶端钝或急尖，基部圆形，上面无毛或几无毛，下面被灰白色或淡黄色星状茸毛，间或混生纲毛；叶柄长5-7毫米。聚伞花序有2至数朵花；花梗通常有锥尖状的小苞片4枚；萼管状，长6毫米，被星状短柔毛，5裂，裂片三角形；花瓣5片，不等大，淡红色或紫红色，比萼略长，基部有2个耳状附属体；雄蕊10枚，退化雄蕊5枚，线形，甚短；子房5室，被毛，较花柱略短，每室有胚珠约10个。蒴果卵状矩圆形，长12-20毫米，宽7-8毫米，顶端急尖，密被星状毛及混生长绒毛；种子小，褐色，有椭圆形小斑点。花期几乎全年。
分布（Distribution）：产湖南、江西、广东、广西、云南、福建，常生于草坡上。印度、缅甸、马来西亚、泰国、越南、老挝、柬埔寨、印度尼西亚、菲律宾等地有分布。
用途（Use）：本种的茎皮纤维可做混纺原料，根可药用，叶捣烂敷患处可治疮疖。
引自中国植物志英文版：FOC Vol. 12 Page 318, 319
Helicteres angustifolia Linnaeus, Sp. Pl. 2: 963. 1753.
山芝麻 shan zhi ma| Sterculiaceae | Helicteres
Small shrubs, up to 1 m tall. Branchlets gray greenish puberulent. Petiole 5-7 mm; leaf blade narrowly oblong or linear-lanceolate, 3.5-5 × 1.5-2.5 cm, glabrous or nearly so adaxially, gray or yellowish stellate tomentose, or sometimes also hirsute abaxially, base rounded, apex obtuse or acute. Inflorescence cymose, 2- or many-flowered. Pedicel usually with 4 pointed bracteoles. Calyx tube-shaped, ca. 6 mm, stellate puberulent, 5-lobed, lobes triangular. Petals 5, unequal in length, pale blue, pink, or purplish, darker at base of limb, slightly longer than calyx, reflexed at anthesis, uniformly pubescent, claws 2-auriculate. Staminodes linear, very short. Ovary 5-celled, hairy, slightly shorter than style; ovules ca. 10 in each locule. Capsule ovoid-oblong, 12-20 × 7-8 mm, densely setose, setae relatively slender, sparsely hairy, apex acute. Seeds small, brown, with elliptic spots. Fl. almost throughout year.
Sloping grasslands. S Fujian, Guangdong, C and S Guangxi, Hainan, Hunan, Jiangxi, Taiwan, S Yunnan [Cambodia, Indonesia, Japan, Laos, Malaysia, Myanmar, Philippines, Thailand, Vietnam; Australia].
The bark is a source of useful fibers, and the roots and leaves are used medicinally.
（责任编辑：徐晔春）
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