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Cassiope tetragona (common names include Arctic bell-heather, white Arctic mountain heather and Arctic white heather) is a plant native to the high Arctic and northern Norway, where it is found widely.
Growing to 10–20 cm in height, it is a strongly branched dwarf shrub. The leaves are grooved, evergreen, and scale-like in four rows. Pedicels are long and arched. The plant bears bell-shaped, solitary flowers usually with white and pink lobes and pink anthers. The flower stalks and sepals are red, but the petals may also be yellowish-white. The anthers can also be brownish-yellow and flower stalks and sepals yellowish-green.
It grows on ridges and heaths, often in abundance and forming a distinctive and attractive plant community.
The plant can also be used in cooking. Canadian chef Louis Charest used arctic heather as a smoked herb for the 2016 Three Amigos Summit state dinner. 
- John 'Lofty' Wiseman SAS Survival Handbook, Revised Edition p. 72; William Morrow Paperbacks (2008) ISBN 978-1875900060
- "Rideau Hall chef cooking up a coast-to-coast dinner for Three Amigos summit". Retrieved 2016-06-28.
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