- Trefoil, HopTrefoil (Trifolium campestre)
- Generally common and widespread hairy annual of dry grassland Occasional on
roadsides and disturbed ground. Leaves alternate and trefoil end leaflet
stalked.. Flowerhead diameter c 10-15 mm.Compact, rounded heads of yellow
flowers appear May to October. The pale brown dead flower heads resemble tiny
hops.Dead petals spread over pods to make a flattish covering, not folded about
their midrib..Height up to 25cm