Corn cleavers Galium tricornutum

Status Red - Endangered & Critically Endangered
Best Time to See

This plant is rather like the common cleaver, being a rough, straggly plant with whorls of narrow leaves. The difference is the flowers, which are cream-coloured, as opposed to the white ones of the common weed.


The plant used to be a common weed of cereal crops, but has declined dramatically over the last 60 years owing to changing agricultural methods, and is now found in only two sites in central-southern England.


Disturbed ground, mainly in arable fields, but also on hedge-banks and sea cliffs.


Classified as Critically Endangered.

Key threats

The use of fertilisers and herbicides, the loss of field margins and the development of highly productive crop varieties.