Alnus rubra, the red alder, is a deciduous broadleaf tree native to western North America (Alaska, Yukon, British Columbia, Washington, Oregon, California, Idaho and Montana).
The constellation’s brightest star, second-magnitude Alpha Pavonis, is called Peacock, a name given in or around 1937 by the UK’s Nautical Almanac Office for use in The Air Almanac, a navigation guide produced for the Royal Air Force. The RAF specified that all navigation stars should have proper names, so this name was coined for the otherwise unnamed Alpha Pavonis.