Matricaria discoidea

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Matricaria discoidea
File:Matricaria discoidea - lõhnav kummel Keilas.jpg
Pineappleweed
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Anthemideae
Genus:
Matricaria
Species:
M. discoidea
Binomial name
Matricaria discoidea
Synonyms

Artemisia matricarioides auct.
Chamomilla suaveolens (Pursh) Rydb.
Lepidanthus suaveolens (Pursh) Nutt.
Lepidotheca suaveolens (Pursh) Nutt.
Matricaria matricarioides auct.
Matricaria suaveolens (Pursh) Buchenau
Santolina suaveolens Pursh
Tanacetum suaveolens (Pursh) Hook.
Source: NRCS,[1] GRIN[2]

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Matricaria discoidea, commonly known as pineappleweed,[3] wild chamomile, and disc mayweed is an annual plant native to North America and Northeast Asia but which has become a cosmopolitan weed. It is in the 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. Pineapple weed has been used for medicinal purposes, including for relief of gastrointestinal upset, infected sores, fevers, and postpartum anemia.

Description

File:Matricaria discoidea 2637.JPG
The pinnately dissected leaves are sweet-scented when crushed (Fir Island, Washington).

The flower head is cone-shaped, composed of dense-packed yellowish-green corollas, and lacking ray-florets. The leaves are pinnately dissected and sweet-scented when crushed. The plant grows 2 to 16 inches (5.1 to 40.6 cm) high. Flowerheads are produced from March to September.

Distribution

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. In North America, it can be found from central Alaska down to California and all the way to Nova Scotia and Newfoundland. It has also become common and naturalised in Britain [4]

Native
Palearctic
Russian Far East: Amur Oblast, Kamchatka Peninsula, Khabarovsk Krai, Kuril Islands, Magadan Oblast, Primorsky Krai, Sakhalin
Eastern Asia: Hokkaido
Nearctic
Subarctic America: Yukon Territory, Alaska
Western Canada: Alberta, Saskatchewan, British Columbia, Manitoba,
Eastern Canada: Ontario, Québec, New Brunswick
Northwestern United States: Idaho, Montana, Oregon, Washington, Wyoming
Southwestern United States: Arizona, California, Nevada, Utah, Colorado
Mexico Northwest: Baja California

Gallery

  • 20130602Strahlenlose Kamille Hockenheim5.jpg
  • Chamomilla suaveolens kz.jpg
  • Lepidotheca suaveolens 01.JPG
  • 20130602Strahlenlose Kamille Hockenheim1.jpg
  • Matricaria discoidea 2629.JPG
  • Strahlenlose Kamille.JPG
  • Pineapple Mayweed (Chamomilla suaveolens) - geograph.org.uk - 497544.jpg
  • Matricaria discoidea by Danny S. - 002.JPG

References

  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ The Wildlife Trusts, "Pineappleweed" http://www.wildlifetrusts.org/species/pineappleweed

External links

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