Extended Data Figure 1: Examples of the definition of ‘woody’.
From: Three keys to the radiation of angiosperms into freezing environments
a–d, We defined ‘woody’ as having a prominent aboveground stem that is persistent over time and with changing environmental conditions. a, Liriodendron tulipifera (Magnoliaceae), Joyce Kilmer Memorial Forest, Robbinsville, North Carolina, USA. b, Carnegiea giganteana (Cactaceae), Biosphere II, Tucson, Arizona, USA, c, Rhopalostylis sapida (Arecaceae) and Cyathea sp. (Cyatheaceae), Punakaiki, South Island, New Zealand. d, Pandanus sp. (Pandanaceae), Moreton Bay Research Station, North Stradbroke Island, Queensland, Australia (photographs by A.E.Z.).
