Pachycauls are plants with a disproportionately thick trunk for their height, and few branches. The word is derived from the Greek pachy- meaning thick or stout, and Latin caulis meaning the stem.
Examples occur in the genera
Pachycormus (Anacardiaceae)AdeniumPachypodium (Apocynaceae)Dendrosenecio (Asteraceae)Bursera (Burseraceae)CyaneaLobelia (Campanulaceae)Dendrosicyos (Cucurbitaceae)Givotia (Euphorbiaceae)Delonix (Fabaceae)Fouquieria (Fouquieriaceae)AdansoniaBombaxBrachychitonCavanillesiaCeiba (Malvaceae)Dorstenia (Moraceae)Cyphostemma (Vitaceae).
