银边翠Euphorbia marginata Pursh.
银边翠Euphorbia marginata Pursh.
19.银边翠（北京名，中国高等植物图鉴）高山积雪（俗名）图版13：1-4
Euphorbia marginata Pursh., Fl. Amer. Sept. 2: 607. 1814. T. N. Liou in Contrib. Lab. Bot. Nat. Acad. Peiping 1 (1): 7. 1931; 中国高等植物图鉴2: 619.图2968. 1972;湖北植物志2; 388.图1296. 1979;江苏植物志2: 415.图1413. 1982; 北京植物志1: 526.图666. 1984; 云南种子植物名录1: 440. 1984, A. Radcliffe——Smith in Nasir ＆ Ali, Fl. Pakist. 172: 108. fig. 20: D——G. 1986; 河南植物志2: 486.图1400. 1986;福建植物志3: 225. 1987; J. S. Ma & C. Y. Wu in Collect. Bot. 21: 104. 1992.
一年生草本。根纤细，极多分枝，长可达20厘米以上，直径3-5毫米。茎单一，自基部向上极多分枝，高可达60-80厘米，直径3-5毫米，光滑，常无毛，有时被柔毛。叶互生，椭圆形，长5-7厘米，宽约3厘米，先端钝，具小尖头，基部平截状圆形，绿色，全缘；无柄或近无柄；总苞叶2-3枚，椭圆形，长3-4厘米，宽1-2厘米，先端圆，基部渐狭。全缘，绿色具白色边；伞幅2-3，长1-4厘米，被柔毛或近无毛；苞叶椭圆形，长1-2厘米，宽5-7 (9)毫米，先端圆，基部渐狭，近无柄花序单生于苞叶内或数个聚伞状着生，基部具柄，柄长3-5毫米，密被柔毛；总苞钟状，高5-6毫米，直径约4毫米，外部被柔毛，边缘5裂，裂片三角形至圆形，尖至微凹，边缘与内侧均被柔毛；腺体4,半圆形，边缘具宽大的白色附属物，长与宽均超过腺体。雄花多数，伸出总苞外；苞片丝状；雌花1枚，子房柄较长，长达3-5毫米，伸出总苞之外，被柔毛；子房密被柔毛；花柱3，分离；柱头2浅裂。蒴果近球状，长与直径均约5.5毫米，具长柄，长达3-7毫米，被柔毛；花柱宿存；果成熟时分裂为3个分果爿。种子圆柱状，淡黄色至灰褐色，长3.5-4毫米，直径2.8-3毫米。被瘤或短刺或不明显的突起；无种阜。花果期6-9月。
原产北美，广泛栽培于旧大陆；我国大多数省区市均有栽培，常见于植物园、公园等处，供观赏。
《Flora of China》 Vol. 11 (2008)
Euphorbia marginata Pursh
银边翠 yin bian cui
Herbs, annual, up to 60-90 cm tall. Root fibrous, 3-5 mm thick, with many rootlets. Stem single, many from base, 3-5 mm thick, smooth, usually glabrous, sometimes less pilose. Leaves alternate, sessile or subsessile; leaf blade elliptic, 5-7 × ca. 3 cm, green, base truncate-rounded, margin entire, apex obtuse, with small tip. Primary involucral leaves 2 or 3, green with white margin, elliptic, 3-4 × 1-2 cm, base attenuate, margin entire, apex rounded, primary rays 2 or 3, 1-4 cm, pubescent or subglabrous; secondary involucral leaves elliptic, 1-2 cm × 5-7(-9) mm, attenuate at base, subsessile, apex obtuse. Cyathia single from axils of involucral leaves or numerous clustered, peduncle 3-5 mm, densely pilose; involucre campanulate, 5-6 × ca. 4 mm, pubescent outside, 5 lobes, lobes triangular to rounded, apex acute to emarginate, pubescent inside; glands 4, rounded, appendages white, longer and wider than gland. Male flowers many, exserted from involucre; bracts linear. Female flower: pedicel 3-5 mm, exserted from cup; ovary densely pilose; styles free, persistent; stigma slightly 2-lobed. Capsule subglobose, ca. 5.5 × 5.5 mm, pilose; fruiting pedicel 3-7 mm. Seeds globose-terete, 3.5-4 × 2.8-3 mm, light yellow to gray-brown, with tuberose or inconspicuous enation; caruncle absent. Fl. and fr. Jun-Sep.
Escaped and naturalized. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangsu, Jiangxi, Ningxia, Shandong, Sichuan, Taiwan, Yunnan, Zhejiang; also cultivated in N China [native to North America; naturalized in the Old World].
Euphorbia marginata is sometimes grown for the cut flower trade.
别名：snow on the mountain;象牙白;六月雪;高山积雪;银边草;象白牙;
科名：大戟科 Euphorbiaceae
属名：大戟属 Euphorbia
19.银边翠（北京名，中国高等植物图鉴）高山积雪（俗名）图版13：1-4
Euphorbia marginata Pursh., Fl. Amer. Sept. 2: 607. 1814. T. N. Liou in Contrib. Lab. Bot. Nat. Acad. Peiping 1 (1): 7. 1931; 中国高等植物图鉴2: 619.图2968. 1972;湖北植物志2; 388.图1296. 1979;江苏植物志2: 415.图1413. 1982; 北京植物志1: 526.图666. 1984; 云南种子植物名录1: 440. 1984, A. Radcliffe——Smith in Nasir ＆ Ali, Fl. Pakist. 172: 108. fig. 20: D——G. 1986; 河南植物志2: 486.图1400. 1986;福建植物志3: 225. 1987; J. S. Ma & C. Y. Wu in Collect. Bot. 21: 104. 1992.
一年生草本。根纤细，极多分枝，长可达20厘米以上，直径3-5毫米。茎单一，自基部向上极多分枝，高可达60-80厘米，直径3-5毫米，光滑，常无毛，有时被柔毛。叶互生，椭圆形，长5-7厘米，宽约3厘米，先端钝，具小尖头，基部平截状圆形，绿色，全缘；无柄或近无柄；总苞叶2-3枚，椭圆形，长3-4厘米，宽1-2厘米，先端圆，基部渐狭。全缘，绿色具白色边；伞幅2-3，长1-4厘米，被柔毛或近无毛；苞叶椭圆形，长1-2厘米，宽5-7 (9)毫米，先端圆，基部渐狭，近无柄花序单生于苞叶内或数个聚伞状着生，基部具柄，柄长3-5毫米，密被柔毛；总苞钟状，高5-6毫米，直径约4毫米，外部被柔毛，边缘5裂，裂片三角形至圆形，尖至微凹，边缘与内侧均被柔毛；腺体4,半圆形，边缘具宽大的白色附属物，长与宽均超过腺体。雄花多数，伸出总苞外；苞片丝状；雌花1枚，子房柄较长，长达3-5毫米，伸出总苞之外，被柔毛；子房密被柔毛；花柱3，分离；柱头2浅裂。蒴果近球状，长与直径均约5.5毫米，具长柄，长达3-7毫米，被柔毛；花柱宿存；果成熟时分裂为3个分果爿。种子圆柱状，淡黄色至灰褐色，长3.5-4毫米，直径2.8-3毫米。被瘤或短刺或不明显的突起；无种阜。花果期6-9月。
原产北美，广泛栽培于旧大陆；我国大多数省区市均有栽培，常见于植物园、公园等处，供观赏。
《Flora of China》 Vol. 11 (2008)
Euphorbia marginata Pursh
银边翠 yin bian cui
Herbs, annual, up to 60-90 cm tall. Root fibrous, 3-5 mm thick, with many rootlets. Stem single, many from base, 3-5 mm thick, smooth, usually glabrous, sometimes less pilose. Leaves alternate, sessile or subsessile; leaf blade elliptic, 5-7 × ca. 3 cm, green, base truncate-rounded, margin entire, apex obtuse, with small tip. Primary involucral leaves 2 or 3, green with white margin, elliptic, 3-4 × 1-2 cm, base attenuate, margin entire, apex rounded, primary rays 2 or 3, 1-4 cm, pubescent or subglabrous; secondary involucral leaves elliptic, 1-2 cm × 5-7(-9) mm, attenuate at base, subsessile, apex obtuse. Cyathia single from axils of involucral leaves or numerous clustered, peduncle 3-5 mm, densely pilose; involucre campanulate, 5-6 × ca. 4 mm, pubescent outside, 5 lobes, lobes triangular to rounded, apex acute to emarginate, pubescent inside; glands 4, rounded, appendages white, longer and wider than gland. Male flowers many, exserted from involucre; bracts linear. Female flower: pedicel 3-5 mm, exserted from cup; ovary densely pilose; styles free, persistent; stigma slightly 2-lobed. Capsule subglobose, ca. 5.5 × 5.5 mm, pilose; fruiting pedicel 3-7 mm. Seeds globose-terete, 3.5-4 × 2.8-3 mm, light yellow to gray-brown, with tuberose or inconspicuous enation; caruncle absent. Fl. and fr. Jun-Sep.
Escaped and naturalized. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangsu, Jiangxi, Ningxia, Shandong, Sichuan, Taiwan, Yunnan, Zhejiang; also cultivated in N China [native to North America; naturalized in the Old World].
Euphorbia marginata is sometimes grown for the cut flower trade.