The disc-shaped leaves and straw-coloured flower spikes of Navelwort help to identify this plant. As does its habitat - look for it growing from crevices in rocks, walls and stony areas.

Flowering in spring, the cylindrical, densely packed flower spikes of Sweet vernal-grass are easily spotted in a meadow. It also tastes of sweet vanilla and was once a favourite 'chewing…

The upright, blue flower spikes of Viper's-bugloss can be spotted on chalk grassland, sand dunes, cliffs and banks. Its spotted stem is thought to resemble a viper.

Ever spotted a honeycomb-like mound on the beach and wondered what it was? It's a reef built entirely by worms!

A tall plant, Rosebay willowherb is a successful coloniser; it can form dense stands of bright pink flower spikes on disturbed ground, such as woodland clearings, verges and waste ground.

Soft brome is a tall, annual grass of roadside verges, waste ground and meadows, and is a 'weed' of arable land. It has long, grey-green leaves and loosely clustered flower spikes.

Tall melilot was introduced into the UK as a fodder crop, but has now become naturalised. It displays golden, pea-like flowers on tall spikes, which are followed by black, hairy seed pods.

Timothy is a grass of meadows, arable land, waste ground and roadside verges. It is also cultivated as fodder for livestock. Look for slender stems and long, cylindrical flower spikes in summer.…