The Leyland cypress, or 'Leylandii', is a notorious tree that has been widely planted for its fast-growing nature. It easily can get out of control, shading gardens at the expense of…

This bumpy shell lives up to its name and lives partly buried in the seabed along the west coast of Great Britain.

The stately Grass-of-parnassus displays pretty, white flowers with green stripes. Once widespread, it is now declining as its wetland habitats are disappearing.

Look for Water avens in damp habitats, such as riversides, wet woodlands and wet meadows. It has nodding, purple-and-orange flowers that hang on delicate, purple stems.

Look for wood avens along hedgerows and in woodlands. Its yellow flowers appear in spring and provide nectar for insects; later, they turn to red, hooked seedheads that can easily stick to a…