| General Description | A common weed, considered to be one of the most competitive amongst soybeans. A close relative to ragweed and thus close contact with pollen and leaves can cause allergic reactions to susceptible individuals. Thick woody, erect, branched stems with alternating leaves. Burs are generally found attached to the root. |
| Cultivation | Prefers moist soil with a temperature of approximately 15˚C. Tolerant of continual flooding and saline soil conditions. |
| Habitat | Soybean fields or beaches. |
| Leaf Description | Wide, triangular leaves with toothed margins. |
| Flower Description | Small hidden green flowers. |
| Fruit Description | Oval, brown burr covered covered in spines and hooked beaks. Each burr contains 2 seeds. |