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| 80-100cm tall | a pair of bracts on the peduncle from the stem joint | buds in a pair of bracts buds opens from the center of bud cluster |
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| after flowering petals shrink melted , then the flower falls down and only the bracteole is left and accumulated in the bracts | young flower whose anther hasn't opened yet. a flower has 3 sepals , 3 petals, 6 stamens and 1 pistil |
6 young stamens
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| young stamens | anther : right anther sack is opening | anther : anther sacks haven't opened yet |
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| young pistil : style of pistil is bent | mature flower : straight style | 6 stamens that have mature anthers pollens are come out |
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| anther sack is opened |
pollens have been come out completely there is a partition membrane in an anther sack |
stigma : pollens are seen on the stigma
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| flower and bracteoles accumulated |