The small, radially symmetrical, 5-petaled flowers are borne in umbels (umbrella-shaped clusters). These umbels are usually compound, with each branch of the primary umbel supporting the secondary umbels. The alternate leaves are mostly pinnately compound. The leaf stalk forms a sheath around the hollow stem.

Carrots, celery and parsnips are members of the family, as are parsley, dill, coriander, caraway and anise. Some species are very poisonous, Poison hemlock having been the drink given to Socrates.

Flower This family contains flowers.

Alexanders, golden Zizia aurea
Angelica/ Alexanders Angelica atropurpurea
Aniseroot/ Sweet anise Osmorhiza longistylus
Cicely, Sweet Osmorhiza claytoni
Harbinger-of-Spring/ Pepper-and-Salt Erigenia bulbosa
Hemlock, Poison Conium maculatum
Honewort Cryptotaenia canadensis
Masterwort Imperatoria ostruthium
Parsnip, Cow Heracleum maximum
Parsnip, Meadow Thaspium trifoliatum
Parsnip, water Sium suave
Parsnip, Wild Pastinaca sativa
Queen Anne's Lace/ Wild Carrot Daucus carota
Snakeroot, Black Sanicula canadensis
Snakeroot, long-fruited Sanicula trifolia
Water-Hemlock/ Spotted Cowbane Cicuta maculata