Multiple choice In _______, the tips of the main veins are converging at the apex. castor zizyphus nerium canna Reveal answer Fill a bubble to check yourself B Correct answer Explanation Zizyphus shows convergent venation where main veins meet at leaf apex. Castor has palmate, Nerium has reticulate, Canna has parallel - but none show the convergent pattern as clearly as Zizyphus.