Form: Long stems with flower heads that look like grain
Height: Up to 3.5 feet
Seedhead: Spikes 1.5 to 5 inches, often nodding when mature
Seeds: Propagated by seed
Leaves: Half-inch wide blades
Roots: Grows rapidly, and produces an extensive, fibrous root system.
Ecology: Good drought and heat tolerance. Has the ability to smother and suppress plants with allelopathic compounds, which are herbicide-like chemicals that permeate the surrounding area. Like most weeds, it can outcompete other plants and decrease diversity in the region.