Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Centromadia pungens, the commmon spikeweed or common tarweed, is a species of North American plants in the tarweed tribe within the sunflower family. It is native to northern Baja California and the western United States (California, Oregon, Washington, Idaho, Nevada, Arizona). The plant is considered a noxious weed in parts of the Pacific Northwest. Centromadia pungens is an herb up to 120 cm (48 inches) tall. It produces arrays of numerous yellow flower heads with both ray florets and disc florets.

Plant type

Annual herb

Size

4 ft Tall

Calscape icon
Color

Yellow

Sun

Full Sun

Soil drainage

Standing

Site type

Grassy, wet places, marshes

Plant communities

Valley Grassland, Wetland-Riparian

Bees
Caterpillars
Butterflies

Butterflies and moths supported

0 confirmed and 2 likely

Confirmed Likely

Cyclophora dataria

Spotted Straw Sun Moth

Heliothis phloxiphaga