[plants] Haeckel (1866) - plants vascular plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998) euphyllophytes see Clade Euphyllophyta Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020] Spermatophyta Britton & Brown 1896 [Crane & Kenrick 1997], nom. cl. inval. - seed plants see Clade Spermatophyta Britton & Brown 1896 [Cantino, Doyle & Donoghue 2020] Class Magnoliopsida Brongn. (1843) "Eudicots" see Clade Eudicotyledoneae Donoghue, Doyle & Cantino 2007 [Donoghue, Doyle & Cantino 2020] Order Ranunculales Juss. ex Bercht. & J.Presl (1820) Family Papaveraceae Juss. (1789), nom. cons. - poppy family 1 Subfamily Pteridophylloideae 2.1 'I' Subfamily Chelidonioideae see Tribe Chelidonieae Dumort. (1827) 2.2 'II' Subfamily Eschscholzioideae see Tribe Eschscholzieae Baill. (1871) 2.3 'III' Subfamily Platystemonoideae see Tribe Platystemoneae 2.4 'IV' Subfamily Papaveroideae Eaton 3 Subfamily Fumarioideae (Marquis) Eaton