Biology:Tripleurospermum

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Short description: Genus of flowering plants

Tripleurospermum
Tripleurospermum perforatum.JPG
Tripleurospermum inodorum
Scientific classification e
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
(L.) Sch.Bip.
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

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


  • Tripleurospermum ambiguum (Ledeb.) Franch. & Sav. - Heilongjiang, Xinjiang, Kazakhstan, Mongolia, Uzbekistan, Iran, Kyrgyzstan, Altai Krai
  • Tripleurospermum anchialense M.Král
  • Tripleurospermum auriculatum (Boiss.) Rech.f. - Middle East including Egypt and Saudi Arabia
  • Tripleurospermum baytopianum E.Hossain
  • Tripleurospermum breviradiatum (Ledeb.) Pobed.
  • Tripleurospermum callosum (Boiss. & Heldr.) E.Hossain - Turkey
  • Tripleurospermum caucasicum (Willd.) Hayek - south-eastern Europe and south-western Asia from Switzerland to Iran
  • Tripleurospermum conoclinium (Boiss. & Balansa) Hayek - Greece, Turkey
  • Tripleurospermum corymbosum E.Hossain
  • Tripleurospermum decipiens (Fisch. & C.A Mey.) Bornm. - Turkey, Iran, Caucasus
  • Tripleurospermum disciforme (C.A.Mey.) Sch.Bip. - central and south-western Asia
  • Tripleurospermum elongatum (Fisch. & C.A.Mey. ex DC.) Bornm. - Turkey, Georgia
  • Tripleurospermum eskilense Tekşen & Karaman - Turkey
  • Tripleurospermum fissurale (Sosn.) E.Hossain - Turkey
  • Tripleurospermum froedinii Rech.f.
  • Tripleurospermum griersonii Yıld.
  • Tripleurospermum heterolepis (Freyn & Sint.) Bornm. - Turkey
  • Tripleurospermum homogamum G.X.Fu - Xinjiang
  • Tripleurospermum hookeri Sch.Bip.
  • Tripleurospermum hygrophilum (Bornm.) Bornm. - Turkey
  • Tripleurospermum inodorum (L.) Sch.Bip. - Europe, temperate and arctic Asia; naturalized in North America, New Zealand etc., considered a noxious weed in some places
  • Tripleurospermum insularum Inceer & Hay.-Ayaz
  • Tripleurospermum kotschyi (Boiss.) E.Hossain
  • Tripleurospermum limosum (Maxim.) Pobed. - China (Hebei, Heilongjiang, Jilin, Liaoning, Inner Mongolia), Japan, Kazakhstan, Korea, Mongolia, Uzbekistan, Russia (Irkutsk, Amur, Khabarovsk, Primorye)
  • Tripleurospermum maritimum (L.) W.D.J.Koch - Arctic coasts of Eurasia and North America
  • Tripleurospermum melanolepis (Boiss. & Buhse) Pobed. - Turkey, Caucasus
  • Tripleurospermum microcephalum (Boiss.) Bornm. - Turkey, Iran, Syria, Lebanon
  • Tripleurospermum monticola (Boiss. & A.Huet) Bornm. - Azerbaijan, Armenia
  • Tripleurospermum parviflorum (Willd.) Pobed. - Greece, Ukraine, Crimea, European Russia, Caucasus, Turkey, Iran, Syria, Jordan, Lebanon, Iraq, Turkmenistan, Kazakhstan, Uzbekistan
  • Tripleurospermum pichleri (Boiss.) Bornm. - Bithynia region of Turkey
  • Tripleurospermum repens (Freyn & Sint.) Bornm. - Turkey
  • Tripleurospermum rosellum (Boiss. & Orph.) Hayek - Greece and Turkey including islands
  • Tripleurospermum rupestre (Sommier & Levier) Pobed.
  • Tripleurospermum sannineum (Thiéb.) Mout. - Lebanon
  • Tripleurospermum sevanense (Manden.) Pobed. - Turkey, Iran, Armenia
  • Tripleurospermum subpolare Pobed. - Scandinavia, Baltic States, northern European Russia
  • Tripleurospermum tempskyanum (Freyn & Sint.) Hayek - Greece
  • Tripleurospermum tenuifolium (Kit.) Freyn - Caucasus; southeastern Europe from Germany to Bulgaria
  • Tripleurospermum tetragonospermum (F.Schmidt) Pobed.
  • Tripleurospermum transcaucasicum (Manden.) Pobed. - Turkey, Georgia, Armenia, Azerbaijan
  • Tripleurospermum ziganaense Inceer & Hay.-Ayaz


Formerly included

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

  • Tripleurospermum breviradiatum - Matricaria breviradiata
  • Tripleurospermum fuscatum - Heteromera fuscata
  • Tripleurospermum philaenorum - Heteromera philaenorum
  • Tripleurospermum pulchrum - Pyrethrum pulchrum

References

External links

Wikidata ☰ Q748153 entry