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Tripleurospermum

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Tripleurospermum
Tripleurospermum inodorum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Anthemideae
Genus: Tripleurospermum
Sch.Bip. (1844)
Type species
Tripleurospermum inodorum
Synonyms[1]
  • Rhytidospermum Sch.Bip.
  • Dibothrospermum Knaf
  • Gastrosulum Sch.Bip.
  • Chamaemelum Vis. 1845, illegitimate homonym not Mill. 1754
  • Trallesia Zumagl.
  • Gastrostylum Sch.Bip.
  • Chamomilla Godr.

Tripleurospermum is a genus in the chamomile tribe within the sunflower family.[2][3] Mayweed is a common name for plants in this genus.[4]

Most of the species are from Europe and temperate Asia although a few are from North America and North Africa. The species are placed in Matricaria by some authors.[5][6][7]

Plants typically have lobed leaves that are composed of one to three opposite pairs cut almost to the leaf mid rib: they have indehiscent one-celled fruits that have 3-ribs and two resinous glands at the base, Matricaria species are distinguished from these species by lacking fruits with 3-ribs and the two glands.[8]

Species

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There are approximately 40 species recognised in the genus Tripleurospermum:[9]

Formerly included

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The genus is closely related to Heteromera, Matricaria, and Pyrethrum.[1]

References

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  1. ^ a b Flann, C (ed) 2009+ Global Compositae Checklist Archived 2014-11-06 at archive.today
  2. ^ Schultz, Carl Heinrich Ġinus. 1844. Ueber die Tanaceteen: mit besonderer Berücksichtigung der deutschen Arten 31–34
  3. ^ Tropicos, Tripleurospermum Sch. Bip.
  4. ^ NRCS. "Tripleurospermum". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 15 December 2015.
  5. ^ Flora of North America Vol. 19, 20 and 21 Page 548, Tripleurospermum Schultz-Bipontinus, Tanaceteen. 31. 1844.
  6. ^ Flora of China Vol. 20-21 Page 769 三肋果属 san lei guo shu Tripleurospermum Schultz Bipontinus, Tanaceteen. 31. 1844.
  7. ^ Altervista Flora Italilana, Camomilla senza odore, Tripleurospermum inodorum (L.) Sch. Bip. includes photos and distribution maps
  8. ^ "6. Tripleurospermum". Flora of Pakistan. 207. New York & Oxford: Oxford University Press: 33. Retrieved 2008-06-16.
  9. ^ "Tripleurospermum Sch.Bip. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 2023-11-16.
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