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Weed Identification

Virginia Tech College of Agriculture and Life Science Virginia Cooperative Extension

dames rocket

Family

Brassicaceae

Scientific Name

Hesperis matronalis
Weed photograph 1
Weed photograph 2
Weed photograph 3
Weed photograph 4
Weed photograph 5
Weed photograph 6
Weed photograph 7

Other Common Names:

dames violet

Habit

This upright perennial blooms from May through August, and can grow up to 5 ft in height.

Leaves

The hairy leaves grow in an alternate arrangement, and are oblong to lanceolate in shape. The leaves can grow from 3 to 8 inches in length, and get progressively smaller as they move up the stem.

Identifying Characteristics

This plant is similar to the New York ironweed, but can be distinguished by its earlier flowering period, and wider leaves.

Flower Seed Head

The purple to white flowers occur in loose clusters. Each individual flower has 4 petals.

Seed Fruit

The seeds develop in a silique that can grow from 2 to 4 inches in length.

Where Found

This plant prefers moist soil in full sun.

Life Cycle

perennial

Plant Type

Herb