Matricaria discoidea: Difference between revisions
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'''''Matricaria discoidea''''', commonly known as '''pineappleweed''',<ref name=BSBI07>{{BSBI 2007 |access-date=2014-10-17 }}</ref> '''wild chamomile''', '''disc mayweed''', and '''rayless mayweed''', is an [[annual plant]] native to North America and/or [[North Asia|northern Asia]] | '''''Matricaria discoidea''''', commonly known as '''pineappleweed''',<ref name=BSBI07>{{BSBI 2007 |access-date=2014-10-17 }}</ref> '''wild chamomile''', '''disc mayweed''', and '''rayless mayweed''', is an [[annual plant]] native to North America and/or [[North Asia|northern Asia]], introduced to [[Europe]] where it grows as a common herb of fields, gardens, and roadsides.<ref>{{cite web | url = http://www.luontoportti.com/suomi/en/kukkakasvit/pineapple-mayweed | title = Pineapple Mayweed | work = NatureGate }}</ref> It is in the daisy family [[Asteraceae]]. The flowers exude a [[chamomile]]/[[pineapple]] aroma when crushed. They are edible and have been used in salads (although they may become bitter by the time the plant blooms) and to make herbal tea. | ||
==Description== | ==Description== | ||
Revision as of 09:51, 17 June 2025
Template:Speciesbox Matricaria discoidea, commonly known as pineappleweed,[1] wild chamomile, disc mayweed, and rayless mayweed, is an annual plant native to North America and/or northern Asia, introduced to Europe where it grows as a common herb of fields, gardens, and roadsides.[2] It is in the daisy family Asteraceae. The flowers exude a chamomile/pineapple aroma when crushed. They are edible and have been used in salads (although they may become bitter by the time the plant blooms) and to make herbal tea.
Description
The flower head or pseudanthium is cone-shaped, composed of densely packed yellowish-green corollas, and lacking ray-florets. The leaves are pinnately dissected and sweet-scented when crushed. The plant grows Template:Convert high. Flowerheads are produced from March to September.
Distribution and habitat
The plant grows well in disturbed areas, especially those with poor, compacted soil. It can be seen blooming on footpaths, roadsides, and similar places in spring and early summer. Some sources say it is native to North America, from central Alaska south to California and Texas and east to Nova Scotia and Greenland.[3]Other sources list it as only native to the Pacific Northwest or as introduced to North America, native to Siberia.[4]
Alongside a variety of other plant species, wild chamomile seeds are known to be inadvertently transported to new areas through soil carried by cars; A study by Dunmail J. Hodkinson and Ken Thompson found that M. discoidea is one of the most common plants to be transported in this way.[5]
It has been introduced widely in the northern hemisphere[3] and is common and naturalized throughout Britain where it is one of the fastest-spreading plants in the 20th century.[6][7]
Uses
The greens can be washed and eaten, and both the flowers and the whole plant can be steeped to make tea,[8] described as "excellent" by one field guide.[9]
Gallery
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The pinnately dissected leaves are sweet-scented when crushed
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References
External links
- USDA Plants Profile for Matricaria discoidea (Disc mayweed, Pineapple weed)
- Jepson Manual treatment: for Chamomilla suaveolens —Matricaria discoidea
- University of Michigan Native American Ethnobotany — Matricaria discoidea
- Pineapple weed - Matricaria discoidea
- Robbins, W. W., Margaret K. Bellue, and Walter S. Ball. 1970. Weeds of California. Documents and Publications, Sacramento. 547 p.
- Gregory L. Tilford. 1997. Edible and Medicinal Plants of the West. Mountain Press Publishing Company, Missoula. 110 p.
- University of California-Davis, Statewide Integrated Pest Management Program — 'Pineapple weed'
- Template:PFAF
- Template:CalPhotos
- ↑ Template:BSBI 2007
- ↑ Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
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- ↑ The Wildlife Trusts, "Pineappleweed" http://www.wildlifetrusts.org/species/pineappleweed
- ↑ Script error: No such module "citation/CS1".
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- Pages with broken file links
- Matricaria
- Edible plants
- Flora of Northeast Asia
- Flora of Japan
- Flora of Alaska
- Flora of Yukon
- Flora of Alberta
- Flora of British Columbia
- Flora of the Northwestern United States
- Flora of the Southwestern United States
- Flora of the Sierra Nevada (United States)
- Flora of California
- Flora of Baja California
- Taxa named by Augustin Pyramus de Candolle
- Flora without expected TNC conservation status
- Pages with script errors