Eupatorium hyssopifolium

hyssopleaf thoroughwort, hyssop-leaf boneset
Family

Asteraceae

Leaf Arrangement

alternate, opposite, whorled

Leaf Attachment

petiolate, sessile

Leaf Margin

entire, serrate

Leaf Type

simple

Leaf Shape

linear, elliptic, lanceolate

Growth Form

forb

Flower Color

white

Flower Month

June - October

Height (meters)

0.2 - 1.2

Milky Sap

No

Armed/Unarmed

Unarmed

Origin

native

Lifespan

perennial

Growing Season

Warm season


Prairie Coefficient of Conservatism

5

Field Characters

Has reduced leafy branches arising from leaf axils which distinguishes it from E. leucolepis which also has narrow leaves.

Cultural Information

The seeds of most species of Eupatorium benefit from cold/dry stratification (Steffen 1997). Seeds average approximately 1,900,000/lb.

Animal Use

The seeds of several Eupatoriums are eaten by birds. Cattle rarely graze it.

Natural History

The species in this genus had many medicinal uses by early pioneers. Their leaves were used as a poultice under splints to heal broken bones, which explains the origin of its common name, "boneset." Eupatorium hyssopifolium ranges from Texas to Florida, north to Rhode Island.

Habitat

Old fields, woodlands, savannas, and pine barrens, especially dry sandy soil.