曲轴黑三棱Sparganium fallax
中文名(Chinese Name):曲轴黑三棱
学名(Scientific Name):Sparganium fallax Graebn.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Sparganium yamatense Matsum. ex Makino
科属(Family & Genus):黑三棱科(Sparganiaceae)黑三棱属
形态特征(Description):多年生水生或沼生草本。块茎短粗;根状茎细长,横走。茎直立,高约40-55厘米,较粗壮,挺水。叶片长45-65厘米,先端渐尖,中下部背面呈龙骨状凸起或稍钝圆,基部鞘状,海绵质。花序总状,长15-17厘米,中下部弯曲;雄性头状花序4-7个,排列稀疏,远离雌性头状花序;雌性头状花序3-4个,生于凹处,下部1(-2)个雌性头状花序具总花梗,生于叶状苞片腋内,总花梗下部通常贴生于主轴;雄花花被片长2-2.5毫米,宽约0.5-0.7毫米,条形,先端具齿,或不整齐,花药长1.5-1.8毫米,宽约0.3-0.5毫米,花丝深褐色,长3-3.5毫米,丝状;雌花花被片长约3毫米,宽约1-1.5毫米,宽匙形,先端具齿,或浅裂,柱头长1.5-2毫米,花柱较短,子房椭圆形,先端渐尖,基部收缩。果实宽纺锤形,长5-6毫米,具短柄,褐色。花果期6-10月。
分布(Distribution):产浙江、福建、台湾、贵州、云南等省,生于湖泊、沼泽、河沟、水塘边浅水处。日本、缅甸、印度亦有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 23 Page 158, 159, 160
Sparganium fallax Graebner in Engler, Pflanzenr. 2(IV. 10): 15. 1900.
曲轴黑三棱 qu zhou hei san leng| Typhaceae | Sparganium
Stems emersed, erect, 40-55(-80) cm tall. Leaves 45-65 cm × 4-10 mm, upper flattened, lower keeled or trigonous on abaxial side. Racemes 15-17 cm, basally curved; male heads 4-7, distinctly separated from female ones; female heads 3 or 4(-7), relatively widely separated, sessile or lowest pedunculate. Male flowers: perianth segments linear, 2-2.5 mm, serrate-lobate at apex; filaments 3-4.5 mm; anthers oblong, ca. 1.5 × 0.4 mm. Female flowers: perianth segments broadly spatulate, ca. 3 × 1-1.5 mm, serrate-lobate at apex; ovary attenuate toward base; styles short; stigmas 1.5-2 mm. Fruit broadly fusiform, 5-6 mm. Fl. and fr. Jun-Oct.
Shallow water of lakes, ponds, swamps, and streams. Fujian, Guizhou, Taiwan, Yunnan, Zhejiang [India, Indonesia (Sumatra), Japan, Myanmar, New Guinea].
(责任编辑:徐晔春)
学名(Scientific Name):Sparganium fallax Graebn.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Sparganium yamatense Matsum. ex Makino
科属(Family & Genus):黑三棱科(Sparganiaceae)黑三棱属
形态特征(Description):多年生水生或沼生草本。块茎短粗;根状茎细长,横走。茎直立,高约40-55厘米,较粗壮,挺水。叶片长45-65厘米,先端渐尖,中下部背面呈龙骨状凸起或稍钝圆,基部鞘状,海绵质。花序总状,长15-17厘米,中下部弯曲;雄性头状花序4-7个,排列稀疏,远离雌性头状花序;雌性头状花序3-4个,生于凹处,下部1(-2)个雌性头状花序具总花梗,生于叶状苞片腋内,总花梗下部通常贴生于主轴;雄花花被片长2-2.5毫米,宽约0.5-0.7毫米,条形,先端具齿,或不整齐,花药长1.5-1.8毫米,宽约0.3-0.5毫米,花丝深褐色,长3-3.5毫米,丝状;雌花花被片长约3毫米,宽约1-1.5毫米,宽匙形,先端具齿,或浅裂,柱头长1.5-2毫米,花柱较短,子房椭圆形,先端渐尖,基部收缩。果实宽纺锤形,长5-6毫米,具短柄,褐色。花果期6-10月。
分布(Distribution):产浙江、福建、台湾、贵州、云南等省,生于湖泊、沼泽、河沟、水塘边浅水处。日本、缅甸、印度亦有分布。
用途(Use):
引自中国植物志英文版:FOC Vol. 23 Page 158, 159, 160
Sparganium fallax Graebner in Engler, Pflanzenr. 2(IV. 10): 15. 1900.
曲轴黑三棱 qu zhou hei san leng| Typhaceae | Sparganium
Stems emersed, erect, 40-55(-80) cm tall. Leaves 45-65 cm × 4-10 mm, upper flattened, lower keeled or trigonous on abaxial side. Racemes 15-17 cm, basally curved; male heads 4-7, distinctly separated from female ones; female heads 3 or 4(-7), relatively widely separated, sessile or lowest pedunculate. Male flowers: perianth segments linear, 2-2.5 mm, serrate-lobate at apex; filaments 3-4.5 mm; anthers oblong, ca. 1.5 × 0.4 mm. Female flowers: perianth segments broadly spatulate, ca. 3 × 1-1.5 mm, serrate-lobate at apex; ovary attenuate toward base; styles short; stigmas 1.5-2 mm. Fruit broadly fusiform, 5-6 mm. Fl. and fr. Jun-Oct.
Shallow water of lakes, ponds, swamps, and streams. Fujian, Guizhou, Taiwan, Yunnan, Zhejiang [India, Indonesia (Sumatra), Japan, Myanmar, New Guinea].
(责任编辑:徐晔春)
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