Xanthium strumarium


Common Names: Common cocklebur, rough cocklebur, clotbur, large cocklebur, woolgarie bur
Category: Plants
Sub-category: Aster family


Grows to about 2 to 4 feet tall. It is little branched, except for short side stems developing from the leaf axils. The stems are round or slightly ribbed. They are often speckled with purple and have short white hairs scattered across the surface. The alternate leaves are up to 8 inches long and 6 inches across. They are cordate or ovate-cordate with bases that are well-rounded or indented and tips that are broad and blunt. Their margins are shallowly lobed or coarsely toothed, while the upper surface has a sandpapery texture. Each leaf has a long petiole that is often reddish or reddish green and about as long as the leaf blade. The petioles usually have short white hairs. A single spike-like raceme of compound flowers develops from the axil of each upper leaf. These racemes are shorter than the petioles of the leaves, often 1 to 4 inches in length. The burs have hooked projections that can become easily attached to clothing or fur.

It's habitat varies quite it bit but mostly found in fields, near the edges of rivers and ponds, and coastal areas. Blooms in late summer to early fall.

Primary Flower Color: Green
Secondary Flower Color: White
 
Edible Notes: While there are some reports of traditional native use of the seeds for food in small quantities, it should generally be avoided due to known toxins.
Warnings: Not known to be dangerous.
Sightings