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On the hawaiian islands, evidence indicates that the 50 species of plants in the the "silversword alliance" all arose from a single immigrant plant. the plants in the "silversword alliance" are extremely diverse and include trees, shrubs, lianas and other herbaceous plants. this is an example of adaptive radiation.

Answer :

It is true. The Mauna Kea Silversword is highly endangered flowering plant endemic which is Hawaii island. Mauna Kea silversword is a member of the silversword alliance. The group has fifty species in the three genera of endemic Hawaii islands.
It is an erect, monocarpic single-stemmed, basically wordy herb, spirally arranged. The leaves are being covered with a dense layer of long silvery hairs, the leaves have essential ability to store water as a gel in the intracellular spaces whereby the other plants leaves they contain air in them.

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