Multiple choice Bicollateral bundles are found in: Cucurbitaceae Malvaceae Cruciferae Both (a) and (b) None of these Reveal answer Fill a bubble to check yourself A Correct answer Explanation Bicollateral vascular bundles have phloem on both outer and inner sides of xylem, a characteristic feature of Cucurbitaceae family (pumpkins, gourds). Malvaceae has collateral bundles, Cruciferae has collateral bundles.