午时花Pentapetes phoenicea
中文名（Chinese Name）：午时花
学名（Scientific Name）：Pentapetes phoenicea L.
英文名（English Common Name）：flor impia
别名（Chinese Common Name）：夜落金钱
异名（Synonym）：
科属（Family & Genus）：梧桐科（Sterculiaceae）午时花属
形态特征（Description）：一年生草本，高0.5-1米，被稀疏的星状柔毛。叶条状披针形，长5-10厘米，宽1-2厘米，顶端渐尖，基部阔三角形、圆形或截形，边缘有钝锯齿；叶柄长1-2.5厘米。花1-2朵生于叶腋，开于午间，闭于明晨；萼片5枚，披针形，长约1厘米，外面被星状柔毛及刚毛；花瓣5片，红色，广倒卵形，长约12毫米；雄蕊15枚，每3枚集合成群，并与退化雄蕊互生，基部连合，退化雄蕊5枚，舌状，长12-13毫米，宽约1毫米；子房无柄，5室，卵形，被长柔毛，每室有胚珠约8-12个，花柱线形，无毛，长约1厘米。蒴果近圆球形，直径约1.2厘米，密被星状毛及刚毛，比宿存萼短。花期夏秋。
分布（Distribution）：原产印度，我国广东、广西、云南南部等地多有栽培，亚洲热带地区和日本也有分布。
用途（Use）：
引自中国植物志英文版：FOC Vol. 12 Page 326
Pentapetes phoenicea Linnaeus, Sp. Pl. 2: 698. 1753.
午时花 wu shi hua| Sterculiaceae | Pentapetes
Annual herbs, 0.5-1 m tall, sparsely stellate hairy. Petiole 1-2.5 cm; leaf blade linear-lanceolate, 5-10 × 1-2 cm, base broadly cuneate, rounded or truncate, margin crenate, apex acuminate. Flowers opening at noon, closing at dawn. Calyx lobes lanceolate, ca. 1 cm, abaxially stellate velutinous and hispid. Petals red, broadly ovate, ca. 12 mm. Staminodes tongue-shaped, 12-13 × ca. 1 mm. Ovary ovoid, villous; ovules 8-12 per cell; style filiform, glabrous, ca. 1 cm. Capsule nearly globose, ca. 1.2 cm in diam., densely stellate hairy and hispid, shorter than persistent calyx. Fl. summer-autumn.
Cultivated, requires moist conditions. Guangdong, Guangxi, Sichuan, S Yunnan [Bangladesh, India, Indonesia, Japan, Malaysia, Myanmar, Nepal, Philippines, Sri Lanka, Thailand, Vietnam; N Australia; naturalized in Central America].
Pentapetes phoenicea is a plant of tropical Asia that is cultivated for its bright red flowers. It has become naturalized in many areas such that the native distribution is now obscured.
（责任编辑：duckuly）
学名（Scientific Name）：Pentapetes phoenicea L.
英文名（English Common Name）：flor impia
别名（Chinese Common Name）：夜落金钱
异名（Synonym）：
科属（Family & Genus）：梧桐科（Sterculiaceae）午时花属
形态特征（Description）：一年生草本，高0.5-1米，被稀疏的星状柔毛。叶条状披针形，长5-10厘米，宽1-2厘米，顶端渐尖，基部阔三角形、圆形或截形，边缘有钝锯齿；叶柄长1-2.5厘米。花1-2朵生于叶腋，开于午间，闭于明晨；萼片5枚，披针形，长约1厘米，外面被星状柔毛及刚毛；花瓣5片，红色，广倒卵形，长约12毫米；雄蕊15枚，每3枚集合成群，并与退化雄蕊互生，基部连合，退化雄蕊5枚，舌状，长12-13毫米，宽约1毫米；子房无柄，5室，卵形，被长柔毛，每室有胚珠约8-12个，花柱线形，无毛，长约1厘米。蒴果近圆球形，直径约1.2厘米，密被星状毛及刚毛，比宿存萼短。花期夏秋。
分布（Distribution）：原产印度，我国广东、广西、云南南部等地多有栽培，亚洲热带地区和日本也有分布。
用途（Use）：
引自中国植物志英文版：FOC Vol. 12 Page 326
Pentapetes phoenicea Linnaeus, Sp. Pl. 2: 698. 1753.
午时花 wu shi hua| Sterculiaceae | Pentapetes
Annual herbs, 0.5-1 m tall, sparsely stellate hairy. Petiole 1-2.5 cm; leaf blade linear-lanceolate, 5-10 × 1-2 cm, base broadly cuneate, rounded or truncate, margin crenate, apex acuminate. Flowers opening at noon, closing at dawn. Calyx lobes lanceolate, ca. 1 cm, abaxially stellate velutinous and hispid. Petals red, broadly ovate, ca. 12 mm. Staminodes tongue-shaped, 12-13 × ca. 1 mm. Ovary ovoid, villous; ovules 8-12 per cell; style filiform, glabrous, ca. 1 cm. Capsule nearly globose, ca. 1.2 cm in diam., densely stellate hairy and hispid, shorter than persistent calyx. Fl. summer-autumn.
Cultivated, requires moist conditions. Guangdong, Guangxi, Sichuan, S Yunnan [Bangladesh, India, Indonesia, Japan, Malaysia, Myanmar, Nepal, Philippines, Sri Lanka, Thailand, Vietnam; N Australia; naturalized in Central America].
Pentapetes phoenicea is a plant of tropical Asia that is cultivated for its bright red flowers. It has become naturalized in many areas such that the native distribution is now obscured.
（责任编辑：duckuly）
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