Virginia Tech Weed Identification Guide

Stinkgrass: Eragrostis cilianensis

stinkgrasss1-15b.jpg (131864 bytes) Weed Description:  A summer annual grass weed that emits a distinctive odor.  Stinkgrass is a common grass weed of many agronomic crops, pastures, hayfields, and noncrop areas.
Seedling:  Seedlings develop into tufted plants relatively quickly.  Leaves are without auricles and have ligules that are less than 1 mm long and a fringe of hairs. stinkgrss8-9.jpg (62707 bytes)
Leaves: Leaves are rolled in the bud and are approximately 5 to 10 mm wide.  Leaves are smooth and glossy below while upper leaf surfaces are rough and may have hairs along the margins.  Auricles are absent and the ligule is a fringe of hairs that is usually less than 1 mm long.
Stems:  Sheaths are round to slightly flattened, without hairs except occasionally where the leaf joins to the sheath.
stinkgrass4-6b.jpg (21979 bytes) Roots: A fibrous root system.
Flowers:  Seedhead a triangular panicle that has a grayish green cast.  Panicles may reach 8 inches in length and consist of spikelets that are approximately 3/4 inch long.  Individual spikelets are gray to silver in color.
stinkgrass4-6c.jpg (109764 bytes) Identifying Characteristics:   Annual grass that emits an unpleasant odor and has ligules that are less than 1 mm long and are a fringe of hairs.  The distinctive grayish-green panicle also helps to distinguish this weed from other similar grasses.