Pasture Management
for
Horses

Growth Habit

Perennial, leaves sessile and alternate.

The perforate St. Johns Wort is so called because the leaves appear to have pin- prick holes in them when held up to the light.

Most have two obvious ribs along the length of the stem, except the Square Stemmed St. Johns Wort, which has four.

Flowers yellow, five petals.

Encouraged by

Chemical Control

Physical Control

Toxicity

Flowers and leaves are toxic containing hypericin (Photosensistivity)

Symptoms in horses Peeling skin, loss of appetite, staggering gait, coma.