Pineappleweed
Pineappleweed covering newly
exposed bare mud
Flowerheads and leaves
Close-up of flowerheads
Leaves
Matricaria discoidea
Asteraceae
Rayless mayweed, M.matricoides
May to November
It is found throughout the country.
See the BSBI distribution map for Pineappleweed
It is a well known weed growing on fertile bare (disturbed)
ground in gardens, allotments and arable fields, on waste
ground, and by tracks and roads.
It also grows at the base of walls and in cracks in
pavements.
It is a neophyte which escaped from Kew Gardens in
the early 1780s and was said to be one of the fastest
spreading plants in the 20th Century.
Pineappleweed is an annual, strongly aromatic (when
crushed it smells of pineapple) herb, growing up to 40cm.
The flower heads are up to 8mm across and are on short
branches.
They have no ray florets and the disk florets are green
-yellow.
Leaves are 2 to 3 pinnate.
The linear leaves resembling soft bristles.
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Pineappleweed covering newly
exposed bare mud
Flowerheads and leaves
Close-up of flowerheads
Leaves
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