海马齿Sesuvium portulacastrum (L.) L.
海马齿Sesuvium portulacastrum (L.) L.
1. 海马齿（海南植物志）图版5: 4-6
Sesuvium portulacastrum (L.) L. , Syst. Nat. ed. 10. 1058. 1759; Merr. et Chun in Sunyatsenia 2: 221. 1935; Backer in Steenis, Fl. Males. ser. 1, 4 (3): 272. fig. 2. 1951; 海南植物志1: 383.图201. 1964; Tard. -Bl. Fl. Camb. Laos et Vietn. fasc. 5: 82. pl. 1: 12-16. 1967; 台湾植物志2: 309. pl. 307. 1976. ——Portulaca portulacastrum L., Sp. Pl. 446. 1753.
多年生肉质草本。茎平卧或匍匐，绿色或红色，有白色瘤状小点，多分枝，常节上生根，长20-50厘米。叶片厚，肉质，线状倒披针形或线形，长1.5-5厘米，顶端钝，中部以下渐狭成短柄状，基部变宽，边缘膜质，抱茎。花小，单生叶腋；花梗长5-15毫米；花被长6-8毫米，筒长约2毫米，裂片5，卵状披针形，外面绿色，里面红色，边缘膜质，顶端急尖；雄蕊15-40，着生花被筒顶部，花丝分离或近中部以下合生；子房卵圆形，无毛，花柱3，稀4或5。蒴果卵形，长不超过花被，中部以下环裂；种子小，亮黑色，卵形，顶端凸起。花期4-7月。
产福建、台湾、广东（台山）、海南（南部）及东沙岛。生于近海岸的沙地上。广布全球热带和亚热带海岸。
有毒。
《Flora of China》 Vol. 5 (2003)
Sesuvium portulacastrum (Linnaeus) Linnaeus
海马齿 hai ma chi
Portulaca portulacastrum Linnaeus, Sp. Pl. 1: 446. 1753.
Herbs perennial. Stems prostrate or creeping, green or red, 20-50 cm, much branched, often rooting from nodes, with white bladder cells. Leaves linear-oblanceolate or elliptical, 1.5-5 cm × 2-10 mm, below middle attenuate, base broadened into membranous margins clasping stem. Pedicel 5-20 mm. Flowers solitary. Perigone 6-8 mm; tube ca. 2 mm; lobes 5, ovate-lanceolate, outside green, inside pink. Stamens 15-20, connate with perigone tube below middle. Ovary obovate, glabrous; stigmas 3-5. Capsule obovate, shorter than perigone. Seeds shiny black. Fl. Apr-Jul. 2n = 36, 40, ca. 48.
Sands of seashores. Fujian, Guangdong, Hainan (including Nanhai Zhudao), Taiwan [tropical and subtropical regions worldwide].
别名：滨水菜;滨马齿苋;猪母菜;海马齿苋;滨苋;shoreline seapurslane;
科名：番杏科 Aizoaceae
属名：海马齿属 Sesuvium
1. 海马齿（海南植物志）图版5: 4-6
Sesuvium portulacastrum (L.) L. , Syst. Nat. ed. 10. 1058. 1759; Merr. et Chun in Sunyatsenia 2: 221. 1935; Backer in Steenis, Fl. Males. ser. 1, 4 (3): 272. fig. 2. 1951; 海南植物志1: 383.图201. 1964; Tard. -Bl. Fl. Camb. Laos et Vietn. fasc. 5: 82. pl. 1: 12-16. 1967; 台湾植物志2: 309. pl. 307. 1976. ——Portulaca portulacastrum L., Sp. Pl. 446. 1753.
多年生肉质草本。茎平卧或匍匐，绿色或红色，有白色瘤状小点，多分枝，常节上生根，长20-50厘米。叶片厚，肉质，线状倒披针形或线形，长1.5-5厘米，顶端钝，中部以下渐狭成短柄状，基部变宽，边缘膜质，抱茎。花小，单生叶腋；花梗长5-15毫米；花被长6-8毫米，筒长约2毫米，裂片5，卵状披针形，外面绿色，里面红色，边缘膜质，顶端急尖；雄蕊15-40，着生花被筒顶部，花丝分离或近中部以下合生；子房卵圆形，无毛，花柱3，稀4或5。蒴果卵形，长不超过花被，中部以下环裂；种子小，亮黑色，卵形，顶端凸起。花期4-7月。
产福建、台湾、广东（台山）、海南（南部）及东沙岛。生于近海岸的沙地上。广布全球热带和亚热带海岸。
有毒。
《Flora of China》 Vol. 5 (2003)
Sesuvium portulacastrum (Linnaeus) Linnaeus
海马齿 hai ma chi
Portulaca portulacastrum Linnaeus, Sp. Pl. 1: 446. 1753.
Herbs perennial. Stems prostrate or creeping, green or red, 20-50 cm, much branched, often rooting from nodes, with white bladder cells. Leaves linear-oblanceolate or elliptical, 1.5-5 cm × 2-10 mm, below middle attenuate, base broadened into membranous margins clasping stem. Pedicel 5-20 mm. Flowers solitary. Perigone 6-8 mm; tube ca. 2 mm; lobes 5, ovate-lanceolate, outside green, inside pink. Stamens 15-20, connate with perigone tube below middle. Ovary obovate, glabrous; stigmas 3-5. Capsule obovate, shorter than perigone. Seeds shiny black. Fl. Apr-Jul. 2n = 36, 40, ca. 48.
Sands of seashores. Fujian, Guangdong, Hainan (including Nanhai Zhudao), Taiwan [tropical and subtropical regions worldwide].