ʻakau sukau

Ko e ʻakau sukau (gnetophyta) ʻi he saienisi ʻo e ʻakau ko e taha pē ʻo e vahe ʻo e ngaahi meʻamoʻui ʻe 5 ʻi he ʻuluʻivahe ko e ʻakau tengaʻiʻakau (spermatophytes). ʻOku ne kau ki he pupunga ʻo e tengaʻiʻakau telefua (gymnospermae), tatau mo 
e
 ponga paame (cycadophyta)
 ʻakau fuasiliva (ginkgophyta)
 ʻakau paini (pinophyta)
Ko e vahe fika hono 5 ko e ʻakau matala (magnoliophyta) ia, ko e taha pē ia ʻi he pupunga ʻo e tengaʻiʻakau ʻufiʻufi (angiospermae).

ʻOku siʻi pē ʻa e ngaahi faʻahinga ʻi he vahe ʻo e ʻakau sukau, kā ʻoku ʻi ai ha ʻakau fakatāfuʻua, fakatātā ko e Welwitschia mirabilis ʻi ʻAfilika (vakai ki he faitā).

ʻOku ʻikai tupu ʻi Tongá ni ʻa e ngaahi ʻakau sukau, kā ʻoku tupu ʻa e faʻahinga ʻe taha pē ʻi Fisi, ko e sukau.