Foxtail Grass (Alopecurus Agrestis, L.)

The habitat of this plant is cornfields, fields, and roadsides. The habit is erect, prostrate below. The stem is rough. The leaves are flat, with rough edges, the sheaths smooth or rough, the ligule large and blunt. The wavy, slender panicle is purple, tapered (hence myosuroides), with short branches, hairy. The spikelets are two. The empty glume is smooth, acute, united to the middle, with a fringe of hairs on the back. The flowering glume is slightly projecting. The awn is twice as long as the palea. The styles are combined. The fruit is enclosed in the palea. The plant is 1-2 ft. in height, and flowers from May to October, being a herbaceous annual.

Black Bent-Grass (Agrostis Nigra, With.)

The habitat of this grass is cultivated fields or their borders. It has been regarded as a variety of A. vulgaris. The stem is erect, the plant being taller and more robust than the latter. The ligule is long, prominent, obliquely blunt. The sheaths are rather rough. The panicle is rough, with rigid branches, which are erect to spreading, simple below. The glumes are nearly equal, toothed above. The anthers are pale when ripe, half as broad as long. The plant is 1-3 ft. high. It is in flower in July, and is a herbaceous perennial.

Wind Grass (Apera Interrupta, Beauv.)

This species is perhaps a colonist, and the plant is found on sandy ground. The habit is similar to A. spica venti (q.v.). But the panicle is narrow, interrupted, and the anthers are oblong or oval. The branches of the panicle do not spread but divide from the base. The awn exceeds the palea three times. The plant is 6-18 in. in height. It is in flower in June and July. It is a herbaceous annual.

Oat (Avena Strigosa, Schreb.)

The habitat of this grass is cornfields. The habit is erect, the plant smaller and more slender than the Wild Oat. The leaves are sometimes hairy. The florets are ranged all on one side of the panicle, with few branches, and about 2 florets in each spikelet, drooping at length. The flower-stalks are smooth. The lower palea is smooth, the empty glumes 7-9 nerved, the flowering glumes divided nearly to the base, with long straight awns distinguishing it from the cultivated Oat. The plant is 2-3 ft. in height, and is in flower between June and July. It is a herbaceous annual.

Brook Rye (Bromus Secalinus, L.)

This plant is found in cornfields, cultivated fields, and by roadsides. The plant has an erect, grass-like habit. The stem is rigid, smooth, with broad, smooth leaves, the sheaths furrowed, and the ligule is short. The panicle is oblong, loose, drooping in fruit, compound, the rachis rough, wavy. The spikelets are flattened, egg-shaped, the flowering glumes spreading, 5-8, not overlapping, round and rough, exceeding the awn, 7-9-nerved. The top of the upper glume is halfway between the base and top of the fourth floret. The empty glumes are rough, oblong. The plant is 1-4 ft. in height, and flowers between June and July, being a herbaceous annual.

Rye Grass (Lolium Remotum, Schrank)

This plant is a rare species, found in cultivated fields and waste places. The habit is erect. There are no barren shoots. The spike is slender, with 7-11 florets, longer than the glumes. The awn of the lower palea is less than the palea, or it may be awnless. It is swollen in fruit and cartilaginous below, narrower than the upper. The plant is 6-18 in. in height. It flowers in June and July, and is a herbaceous annual.