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Form

Asteraceae (Compositae)

Seepwillow grows along sandy waterways in the Trans-Pecos, Edwards Plateau, and Rio Grande Plains. It is the most abundant Baccharis in the Trans-Pecos, and its range extends to Colorado and California, south to Chile. The long, narrow leaves and twigs are covered with a sticky substance. Male and female flowers are on separate plants; its white blossoms appear from summer into fall. It often forms thickets, and had been used for erosion control along watercourses until it became apparent it was an extremely aggressive invader that choked the waterways, making management of them impossible, while using an enormous amount of valuable water (see B. halimifolia and B. neglecta).

Plant Habit or Use: small shrub
medium shrub

Exposure: sun

Flower Color: white

Blooming Period: summer

Fruit Characteristics: ribbed achene

Height: to 10 feet

Width: to 10 feet

Plant Character: deciduous

Heat Tolerance: high

Water Requirements:

Soil Requirements: alkaline

USDA Hardiness Zone: 7

Additional Comments: