This section is from the book "British Wild Flowers - In Their Natural Haunts Vol5-6", by A. R. Horwood. Also available from Amazon: A British Wild Flowers In Their Natural Haunts.
The habitat of this plant is salt marshes in the south. The plant has the grass habit. The stem is smooth, prostrate or ascending or erect, tuberous (hence bulbosus), forming a circular tuft, geniculate or bent, the lowermost nodes forming egg-shaped, fleshy tubers. The plant is not bluish-green. The upper sheath is enlarged. The ligule is oblong. The panicle is slender, cylindrical, rather acute, long-pointed. The stalks are 1-2-flowered. The empty glumes are acute, free, the keel fringed with short hairs, the flowering glume longer than the palea, the awn projecting half-way beyond the latter from its base. The palea is blunt, notched, with 2 small teeth in the middle. The plant is in flower in May and June, and is a herbaceous perennial.
Milium scabrum, Rich. =M. vernale, Bieb. - The habitat of this plant is grassy cliffs. The plant has the grass habit. The stem is rough (hence scabrum), as indeed is the whole plant. The leaves are linear to lance-shaped, short. The panicle is small, close. The palea is blunt. The bracts are few, short, wavy. The glumes are 3-veined. The plant is 1-4 in. in height, flowering in April and May, and is a herbaceous annual.
The habitat of this plant is sandy dunes, sands near the coast, sandy commons inland, being a sand-loving plant (hence arenarium). The plant has the grass habit. The stems are leafy, crowded, variable in height. The leaves are flat, broad, with enlarged upper leaf- sheaths, which are smooth. The ligule is long. The panicle is egg-shaped, cylindrical to oblong, narrow below, blunt, bluish-green, a common character amongst xerophytes. The spikelets are close. The empty glumes are lance-shaped, long-pointed, scarcely awned, the keel fringed with hairs above. The flowering glume is very small, hairy. The lower palea is notched, one-third as long as the glumes. The plant is 4-8 in. high, flowering in June and July, and is a herbaceous annual.
The habitat of this plant is dry, sandy places and wet sands, especially near the sea. The habit is erect. The stems are numerous, slender, tufted. The leaves are short, erect, bristle-like, rough, blunt, with inrolled margins, adapted to drought. The swollen sheaths are white. The ligule is short. The spikes are slender. The spikelets are stalkless, 5-10. The glume is longer than the 2-nerved palea, hairy, blunt, and torn. The empty glumes are longer than the flowering glumes, and there is no awn. There are 3 stamens, with short anthers, and the styles are long, the stigmas hairy. The fruit is flattened at the border, enclosed in the glume and palea. It is only 1-3 in. high. The flowers open in April and May. It is a herbaceous annual.
The habitat of this plant is damp pastures, sandy places near the coast, salt marshes. The habit is erect, and it is a most handsome grass. The stems are stout, arising from a fibrous root, smooth. The large, broad leaves are flat and roughish, with smooth sheaths, and the ligule is blunt and large. The panicle is dense, oblong, egg-shaped, lobed, blunt, pale yellowish-green, soft, and silky. The glumes are rough, notched, blunt, hairy, linear, the awn longer by three times, and straight. The flowering glume is silvery, not as long as the empty glume. The stamens are 1-3, with small anthers. The short styles are free, the stigmas feathery. The fruit is enveloped in the glume and palea. The plant is 9-18 in. in height. It flowers late from July to August, and is a herbaceous annual.