Tripleurospermum is a genus in the family Asteraceae

Asteraceae

The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...

 in the tribe Anthemideae

Anthemideae

The tribe Anthemideae is a division of the family Asteraceae and of the subfamily Asteroideae that contains more than 100 genera which combined contain more than 1200 species. A cosmopolitan tribe, members can be found throughout the world somewhat concentrated in the Mediterranean regions of...

. The classification of the 38 annual and herbaceous perennial species is problematic. 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. 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.

Selected species

• Tripleurospermum auriculatum (Boiss.) Rech. f.
• Tripleurospermum baytopianum E. Hossain
• Tripleurospermum callosum (Boiss. & Heldr.) E. Hossain
• Tripleurospermum caucasicum (Willd.) Hayek
  • Tripleurospermum transcaucasicum (Manden.) Pobed.
• Tripleurospermum conoclinium (Boiss. & Balansa) Hayek
• Tripleurospermum corymbosum E. Hossain
• Tripleurospermum decipiens (Fisch. & C. A. Mey.) Bornm.
• Tripleurospermum disciforme (C. A. Mey.) Sch. Bip.
• Tripleurospermum elongatum (DC.) Bornm.
• Tripleurospermum fissurale (Sosn.) E. Hossain
• Tripleurospermum heterolepis (Freyn & Sint.) Bornm.
• Tripleurospermum hookeri Sch. Bip.
• Tripleurospermum hygrophilum (Bornm.) Bornm.
• Tripleurospermum inodorum (L.) Sch.Bip.
• Tripleurospermum kotschyi (Boiss.) E. Hossain
• Tripleurospermum maritimum
  Tripleurospermum maritimum
  A common seaside plant, Tripleurospermum maritimum is also known as Matricaria maritimum, commonly known as sea mayweed. It is found in many coastal areas of Northern Europe, including Scandinavia and Iceland, often growing in sand or amongst beach pebbles.As with many maritime plants, sea mayweed...
  
  (L.) W.D.J.Koch
• Tripleurospermum microcephalum (Boiss.) Bornm.
• Tripleurospermum monticola (Boiss. & A. Huet) Bornm.
• Tripleurospermum parviflorum (Willd.) Pobed.
• Tripleurospermum pichleri (Boiss.) Bornm.
• Tripleurospermum repens (Freyn & Sint.) Bornm.
• Tripleurospermum rosellum (Boiss. & Orph.) Hayek
• Tripleurospermum sannineum (Thiéb.) Mout.
• Tripleurospermum sevanense
• Tripleurospermum subpolare Pobed.
• Tripleurospermum tempskyanum (Freyn & Sint.) Hayek
• Tripleurospermum tenuifolium (Kit.) Freyn

Sources: UniProt, E+M