[*] Fruit strongly flattened dorsally, with the lateral ribs prominently winged.
[+] Caulescent branching plants, with white flowers.
[++] Lateral wings distinct; oil-tubes usually more than one in the intervals.
3. Angelica. Stylopodium mostly depressed, but the disk prominent and crenulate. Dorsal ribs strong. Stout perennials, with mostly coarsely divided leaves.
4. Conioselinum. Stylopodium slightly conical. Dorsal ribs prominent. Tall slender glabrous perennial; leaves thin, finely pinnately compound.
[++][++] Lateral wings closely contiguous; oil-tubes solitary; stylopodium thick-conical.
5. Tiedemannia. Dorsal ribs apparently 5, filiform. Smooth swamp herbs with leaves few or reduced to hollow cylindrical petioles.
6. Heracleum. Dorsal ribs filiform, the broad wings with a marginal nerve. Oil-tubes obclavate. Petals conspicuous. Tall stout perennials, with large leaves.
[+][+] Caulescent branching plants, with depressed stylopodium and yellow flowers.
7. Pastinaca. Fruit with filiform dorsal ribs, thin wings, and solitary oil-tubes.