Argyroxiphium grayanum
 Argyroxiphium grayanum commonly known as the greensword is a species of flowering plant in the sunflower family Asteraceae and a member of the silversword alliance a group of over 50 species which are diverse in morphology and habitat but are genetically closely related.The silversword alliance provides a convincing natural case study in evolution by adaptive radiation with the greensword representing one extreme of the genus' plasticity.