Pineappleweed
Pineappleweed covering new 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 wasteground,
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 new exposed bare mud
Flowerheads and leaves
Close-up of flowerheads
Leaves
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