Wildflowers of Toronto's High Park​​

Parsnip, cow
​Heracleum lanatum

​Family: Carrot/Parsley
Perennial
Native to Ontario

Blooms: June to August
Habitat: Moist meadows, thickets

Height: up to 2.5 m

Flowers: 10-15 mm arranged in 10-30 cm compound umbels, often with small bracts below.

Stem: 2 cm in diameter, hairy, hollow.

Leaves: 10-40 cm wide, compound (3 leaflets) hairy beneath.

This plant produces a sap which can cause human skin to react to sunlight, resulting in burns, rashes or blisters (though not to the degree of giant hogweed.