Matricaria occidentalis - Unknown
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Internal ID UUID643fc9b7bb8b8332242476
Scientific name Matricaria occidentalis
Authority Greene
First published in Bull. Calif. Acad. Sci. 2: 150 (1886)

Description Top

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Matricaria occidentalis, commonly known as valley mayweed, is an annual plant native to North America in the family Asteraceae. It is 15–45 cm (5.9–17.7 in) high with conical, greenish yellow heads up to 1.5 cm (0.59 in) in diameter. It is used as a substitute for chamomile and is found in wetlands and non-wetlands in California and Oregon.

Synonyms Top

Scientific name Authority First published in
Chamomilla occidentalis Rydb. N. Amer. Fl. 34(3): 232 (1916)
Matricaria discoidea subsp. occidentalis (Greene) P.D.Sell Fl. Gr. Brit. Ireland 4: 556 (2006)

Common names Top

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Language Common/alternative name
English valley mayweed
Chinese 西方小白菊

Subspecies (abbr. subsp./ssp.) Top

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Varieties (abbr. var.) Top

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Germination/Propagation Top

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Distribution (via POWO/KEW) Top

Legend for the distribution data:
- Doubtful data
- Extinct
- Introduced
- Native
  • Northern America
    • Mexico
      • Mexican Pacific Islands
      • Mexico Northwest
    • Northwestern U.S.A.
      • Oregon
    • Southwestern U.S.A.
      • California

Links to other databases Top

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Database ID/link to page
World Flora Online wfo-0000032815
USDA Plants MAOC
Tropicos 2724365
KEW urn:lsid:ipni.org:names:154729-2
The Plant List gcc-131732
Open Tree Of Life 3899353
NCBI Taxonomy 2042429
Nature Serve 2.130947
IPNI 154729-2
iNaturalist 57929
GBIF 3103758
EOL 486970
Calflora (Californian flora) 9500
Wikipedia Matricaria_occidentalis

Genomes (via NCBI) Top

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Scientific Literature Top

Below are displayed the latest 15 articles published in PMC (PubMed Central®) and other sources (DOI number only)!
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Title Authors Publication Released IDs
Host Range and Impact of Dichrorampha aeratana, the First Potential Biological Control Agent for Leucanthemum vulgare in North America and Australia Stutz S, De Clerck-Floate R, Hinz HL, McClay A, McConnachie AJ, Schaffner U Insects 12-May-2021
PMCID:PMC8150849
doi:10.3390/insects12050438
PMID:34066124

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