Lepidium species - Swine-cresses and Pepperworts
Lepidium didymum - Lesser Swine-cress has hairy sprawling stems. The hairless leaves have 2 -7 pairs of thin lobes and a terminal lobe. They smell strongly of cress when crushed. Flowers are tiny and the pods look like a dumb-bell. It is common on path edges where the soil may be compacted.
Lepidium heterophyllum - Smith's Pepperwort
Both of the pepperworts branch, often from near to the base into several crowded parallel-sided flowers spikes.
The stamens have yellow anthers.
The difference is in the fruit. The style exceeds the apical notch of the fruit which is not covered with scale like vesicles.
Lepidium campestre - Field Pepperwort The style does not exceed the apical notch of the fruit which is covered with scale like vesicles. The stamens are violet.
Lepidium sativum - Garden Cress This smells strongly of cress.
Other plants have a common name including ‘cress’ such as: Thale Cress, Water-cress, Bitter-cress, Yellow-cress and Winter-cress.