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Tripleurospermum
Genus of flowering plants
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
The genus is closely related to Heteromera, Matricaria, and Pyrethrum.[1]
References
External links
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