what is inside the foxtail palm hard casing

i have just moved into a house that has a number of foxtail palm trees. they are quite tall.
i am trying to learn about these palms and would like to know what the hard shell case is?
it grows to about 3 feet in length rattles when dry. it seems to have some sort of seeds inside but i know its not the actual palm seed, which is inside the fruit?
Just curious what it might be?
Brian
Rosebud
Australia

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1 Comment To "what is inside the foxtail palm hard casing"

#1 Comment By drtreelove On 04/13/2018 @ 5:16 am

It appears that you are describing an immature flower sheath. The hard covering will open to reveal the flowers, which mature into seeds.
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