Johnson grass

Family: Poaceae
Scientific name: Sorghum halepense
Description: Plant Form: Perennial tussock grass. Size: Up to 2 m tall. Stem: Upright, often hairy at the joins of the flower branches. Leaves: Long, flat blades 20-50 cm long with a prominent white midrib and rough edges. Flowers: Seed head 10-35 cm long, pale green, reddish or purplish, with loosely spreading branches. Fruit and Seeds: Fertile spikelets oval-shaped about 5 mm long and often with long bent bristles 1-2 cm long. Containing reddish-brown to black seeds. Habitat: Pastures, grasslands, roadsides, disturbed areas, riparian areas. Distinguishing Features: Difficult to distinguish from other Sorghums (Sorghum species), but tends to have a more pointed cluster shape and smaller seeds. Impacts: Considered one of the 10 worst weeds in the world. Causes crop losses and acts as a host of pests and diseases. Weed Status: Priority Weed Weed Type: Agricultural, Common Lifeform: Grassy

Example images for this weed