Pineappleweed

©Neil Wyatt

Pineappleweed

Scientific name: Matricaria discoidea
Pineappleweed is an introduced species that has become a widespread 'weed' of disturbed ground, such as pavements and roadsides and gardens. It has feathery leaves and yellow flower heads.

Species information

Statistics

Height: up to 12cm

Conservation status

Introduced, but naturalised species.

When to see

May to November

About

The bright green, feathery leaves and yellow flower heads of Pineappleweed can be seen on bare, disturbed ground, such as paths and pavements, roadsides and tracks. Introduced into the UK during the late 19th century, its rapid spread has been attributed to the growth of motor transport - the seeds being picked up on tyre treads, along with the mud of the then untarmaced roads, and being deposited miles away as rain washed them off.

How to identify

Pineappleweed lives up to its name - its crushed leaves have a distinctive pineapple smell. Its leaves are finely divided and feathery, and its yellow, conical flower heads which look remarkably like tiny pineapples appear from May to November. Like the other members of the daisy family, it is a composite flower, so has a flower head made up of lots of individual blooms, but it has no 'ray florets', so appears to have no 'petals'.

Distribution

Widespread.

Did you know?

Pineappleweed is native to north-east Asia and is thought to have spread to the UK via North America.

How people can help

The Wildlife Trusts record and monitor our local wildlife to understand the effects of various factors on their populations, such as the introduction of new species. You can help with this vital monitoring work by becoming a volunteer - you'll not only help local wildlife but learn new skills and make new friends along the way.