New York Natural Heritage Program
Bushy St. John's-wort
Hypericum densiflorum Pursh
Dicots

General Description [-]
This plant is a much-branched shrub about 2-3 meters tall. Leaves are narrow and usually wider towards the tip, 2-4 centimeters long and 5-8 millimeters wide. There are 7-many flowers in a large inflorescence that appears leafy. Each flower has 3 styles and five bright yellow petals around many long yellow stamens. The fruit is a capsule up to 6 millimeters long and 3 millimeters wide. The placentas intrude into the fruit but do not meet in the center.

Best Life Stage for Proper Identification [-]
The best time to identify this shrub is when it is in flower or fruit.

Similar Species [-]
Shrubby St. John's-wort, Hypericum prolificum, can look similar but there are only 3-7 flowers in its inflorescence and the fruit is larger, 7 mm long by 3.5 mm wide.
Bushy St. John's-wort Images
click to enlarge
The Best Time to See
The leaves come out in April or May and it flowers in late July through August. The fruits are visible in September and October.
J F M A M J J A S O N D
Vegetative Flowering Fruiting
The time of year you would expect to find Bushy St. John's-wort vegetative (blue shading), flowering (green shading) and fruiting (orange shading) in New York.