- Location
- Devon
I know I should know, but....
Common enough.
And is it poisonous to pigs?
Common enough.
And is it poisonous to pigs?
Weed id
- Thread starter Poorbuthappy
- Start date
Coximus
Member
Smells like camomile I think and always becomes dominant in one pig field I saw because they wouldn't eat it with its strong smell.... Never caused any issues
- Location
- Devon
It's in a yard that's greened over. Shut the pigs in there and sow has been eating it and now being sick!
Coximus
Member
A weird this was a large paddock with two sows an other grub. I'd get them over and get the stuff out.. I assumed as they wouldn't eat it it wasn't an issue
- Location
- Devon
A bit of googling suggests pineapple weed.
But that is edible so unless she's just gorged on it would say that's not the cause of being sick.
But that is edible so unless she's just gorged on it would say that's not the cause of being sick.
- Location
- Welshpool Powys
Used to call it pineapple weed and used to squash the flower heads as kids.
Not sure if it’s proper name thiugh
Not sure if it’s proper name thiugh
- Location
- Heisenberg
Surely it just rayless Mayweed isn't it?
- Location
- Devon
Same as pineapple weed it seems.
Northeastfarmer
Member
- Location
- Cleveland
It’s pineapple weed......don’t mind a drop of homemade pineapple weed cordial myself
- Location
- East Sussex
I know I should know, but....
Common enough.
And is it poisonous to pigs?
Does it smell of pineapples or pungent, nasty? Rayless mayweed (nasty, pungent) is not a nice plant and can make people feel unwell when cutting it let alone handling it.
- Location
- Devon
Smells of pineapple, but I'm confused (Not difficult I know)
Many sites say pineapple weed is also known as rayless mayweed.
- Location
- East Sussex
Wikipedia says pineapple weed is also known as discweed, could be American though I suppose. Pineapple weed has no petals to speak of.
- Location
- Devon
Not trying to be argumentative but Google rayless mayweed and Wikipedia comes up with pineapple weed, and Google seems to make them synonymous. Many resulting sites, including UK ones, use the names interchangeably
- Location
- East Sussex
Not trying to be argumentative but Google rayless mayweed and Wikipedia comes up with pineapple weed, and Google seems to make them synonymous. Many resulting sites, including UK ones, use the names interchangeably
Yes,I get it! Would be interested to know the difference: rayless, scented, scentless etc.
I know the one we have will burn your skin and make you feel sick if you’re doing much with it when it’s strong. We’ve got some (shiteloads)in a young ley with lots of clover. Going to stick it through the forager and tip it on the dung heap.
Chasingmytail
Member
- Location
- Newport, SE Wales
Pineappleweed - From Organic Gardening https://www.gardenorganic.org.uk/weeds/pineappleweed
Other names:
rayless chamomile, rayless mayweed
Latin names:
Matricaria discoidea DC.; (M. suaveolens, M. matricarioides, Chamomilla suaveolens)
Weed Type:
Annual Broad-leaved Weeds
Occurrence:
An introduced annual weed of wasteland and bare places by paths. Pineappleweed was introduced into the UK just prior to 1900 and within 25 years it had spread along roadsides throughout most of England. Pineappleweed is now common throughout the UK, and is still increasing, especially on tracks and paths and on cultivated land. It prefers an open loamy or sandy loam soil.
Pineappleweed occurs in cereals and broad-leaved arable crops and has become a frequent weed of intensive vegetable crops. It is also a common garden weed.
Pineapleweed is used medicinally, including as an effective worming treatment. The flowers smell of pineapple when crushed.
Biology:
Pineappleweed flowers from June to September, sometimes into November. Insects seldom visit the flowers. Seed is set from July onwards within 40-50 days of flowering. The average seed number per plant ranges from 850 to 7,000. The 1,000 seed weight is 0.13 g.
Seed germination is promoted by light, just a short flash is sufficient. In the laboratory, germination is increased by a period of dry-storage. Seed sown in field soil and cultivated periodically emerged from February to November with peaks from March to May and August to October.
Plants emerging from January to April remain vegetative for longer before flowering than plants emerging from mid-May to mid-July that take just 40-50 days to flower. All set seed and die before winter. Plants that emerge after August are likely to overwinter as vegetative rosettes that do not flower until the following spring. Daylength is the controlling factor and flowering is delayed at a shorter daylength.
In sandy loam soil, seedlings emerge from the top 0-10 mm of soil with the majority emerging from the surface 5 mm.
Persistence and Spread:
Based on seed characters, pineappleweed seed should persist for longer than 5 years in soil. Seed mixed with soil and left undisturbed declined by 83% after 6 years but in cultivated soil the decline was 91%. Seed buried in sub-arctic conditions had 20% viability after 6.7 years.
Seeds are dispersed in mud and by rain splash. Mud on the tyres of cars was responsible for much of the early spread. The seeds are light enough to be blown by the wind and by passing traffic. Viable seeds have been found in horse droppings.
Management:
Seedlings and larger plants should be controlled by cultivation and hand weeding to prevent seeding. Pineappleweed seedlings are more numerous on tine-cultivated or no-till land than ploughed land.
In grassland, pineappleweed is able to colonise areas around gateways and troughs where livestock have trampled and caused poaching.
Seedlings with 2-6 leaves are tolerant of flame weeding.
Updated October 2007.
Fully referenced review:
matricaria-discoidea.pdf
Other names:
rayless chamomile, rayless mayweed
Latin names:
Matricaria discoidea DC.; (M. suaveolens, M. matricarioides, Chamomilla suaveolens)
Weed Type:
Annual Broad-leaved Weeds
Occurrence:
An introduced annual weed of wasteland and bare places by paths. Pineappleweed was introduced into the UK just prior to 1900 and within 25 years it had spread along roadsides throughout most of England. Pineappleweed is now common throughout the UK, and is still increasing, especially on tracks and paths and on cultivated land. It prefers an open loamy or sandy loam soil.
Pineappleweed occurs in cereals and broad-leaved arable crops and has become a frequent weed of intensive vegetable crops. It is also a common garden weed.
Pineapleweed is used medicinally, including as an effective worming treatment. The flowers smell of pineapple when crushed.
Biology:
Pineappleweed flowers from June to September, sometimes into November. Insects seldom visit the flowers. Seed is set from July onwards within 40-50 days of flowering. The average seed number per plant ranges from 850 to 7,000. The 1,000 seed weight is 0.13 g.
Seed germination is promoted by light, just a short flash is sufficient. In the laboratory, germination is increased by a period of dry-storage. Seed sown in field soil and cultivated periodically emerged from February to November with peaks from March to May and August to October.
Plants emerging from January to April remain vegetative for longer before flowering than plants emerging from mid-May to mid-July that take just 40-50 days to flower. All set seed and die before winter. Plants that emerge after August are likely to overwinter as vegetative rosettes that do not flower until the following spring. Daylength is the controlling factor and flowering is delayed at a shorter daylength.
In sandy loam soil, seedlings emerge from the top 0-10 mm of soil with the majority emerging from the surface 5 mm.
Persistence and Spread:
Based on seed characters, pineappleweed seed should persist for longer than 5 years in soil. Seed mixed with soil and left undisturbed declined by 83% after 6 years but in cultivated soil the decline was 91%. Seed buried in sub-arctic conditions had 20% viability after 6.7 years.
Seeds are dispersed in mud and by rain splash. Mud on the tyres of cars was responsible for much of the early spread. The seeds are light enough to be blown by the wind and by passing traffic. Viable seeds have been found in horse droppings.
Management:
Seedlings and larger plants should be controlled by cultivation and hand weeding to prevent seeding. Pineappleweed seedlings are more numerous on tine-cultivated or no-till land than ploughed land.
In grassland, pineappleweed is able to colonise areas around gateways and troughs where livestock have trampled and caused poaching.
Seedlings with 2-6 leaves are tolerant of flame weeding.
Updated October 2007.
Fully referenced review:
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