They can grow more than 3’ high with a long spike of bright scarlet flowers. The unusual flowers grow on a tall spike and have long red stamens that split the upper lip of the flower.
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When citing a WEBSITE the general format is as follows.
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Amsel, Sheri. "Cardinal Flower" Exploring Nature Educational Resource ©2005-2020. January 24, 2020
< http://www.exploringnature.org/db/view/Cardinal-Flower >