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・ Typha austro-orientalis
・ Typha azerbaijanensis
・ Typha capensis
・ Typha caspica
・ Typha changbaiensis
・ Typha davidiana
・ Typha domingensis
・ Typha elephantina
・ Typha grossheimii
・ Typha incana
・ Typha joannis
・ Typha kalatensis
・ Typha latifolia
・ Typha laxmannii
・ Typha lugdunensis
Typha minima
・ Typha orientalis
・ Typha pallida
・ Typha przewalskii
・ Typha shuttleworthii
・ Typha sistanica
・ Typha subulata
・ Typha tichomirovii
・ Typha turcomanica
・ Typha tzvelevii
・ Typha valentinii
・ Typha varsobica
・ Typha × argoviensis
・ Typha × bavarica
・ Typha × gezei


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Typha minima : ウィキペディア英語版
Typha minima

''Typha minima'', common name Dwarf Bulrush or Miniature Cattail or Least Bulrush, is a perennial herbaceous plant belonging to the Typhaceae family.〔Hoppe, David Heinrich. Botanisches Taschenbuch 5: 187. 1794.〕
==Description==
The biological form of ''Typha minima'' is ''hemicryptophyte'' ''hydrophyte'', meaning that they are plants with submerged overwintering buds, adapted to living in aquatic environments. Vegetative propagation takes place by means of a short 5 to 8 millimeters thick rhizome, that grow up to 20 cm deep in the ground.
''Typha minima'' is the smallest of the cattails. It reaches on average in height,〔Pignatti S. - Flora d'Italia – Edagricole – 1982. Vol. III, pag. 634〕 with a maximum of . The stem is erect and simple. The leaves are blue-green, linear, very narrow and not shiny. They reach up to in length and in width.
These plants are monoecious, with the male and female reproductive structures borne on the same plant but packed into two separate inflorescences. The minute flowers are unisexual and wind-pollinated. Male (staminate) flowers are yellowish, while female (pistillate) flowers are greenish. The female inflorescence is brownish, ellipsoid, long, with an hairy rachis after the fall of the flowers.〔 It is separated from the male inflorescence by a naked stem section, about long. The male inflorescence is thinner and longer, at the top of the vertical stem.〔 The female flowers have one stalked ovary, surrounded by a thick fringe of hair. The three individual stamens of the male flowers are surrounded by just a few hairs. At the end of blooming the male flowers disperse, leaving the top of the stem naked, while the female inflorescence turns into a brown round seed spike. The main flowering period lasts from May through June.〔 Another flowering period may occurs in August.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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