Grass Vetchling - Lathyrus nissolia

This plant has grass like, pointed leaves and small, crimson flowers, 8 to 18 mm, either single or two together, borne on a long, slender stalk.

Leaves reduced to a single grass-like blade. 

Photo of the whole plant, showing leaves as well as flowers

Grassy places, banks and field margins on neutral or mildly acid soils.

Flowers May to July.

Annual.

Local in England and Wales, rare in Scotland.

Scarce in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 2 of the 617 tetrads.

In the current checklist (Jeeves 2011) it is listed as Native; scarce, but apparently increasing, probably through deliberate or accidental introductions.

It is on the Rare Plant Register