Trifolium dubium,thelesser trefoil,[2]suckling clover,[3]little hop cloverorlesser hop trefoil,is aflowering plantin the pea and clover familyFabaceae.This species is generally accepted as the primary plant to represent the traditionalIrishshamrock.[4]

Trifolium dubium
Scientific classificationEdit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Trifolium
Species:
T. dubium
Binomial name
Trifolium dubium
Synonyms[1]
  • Amarenus flavusC. Presl
  • Chrysaspis dubia(Sibth.) Desv.
  • Chrysaspis dubia(Sibth.) E.H.Greene
  • Trifolium filiformesensu auct.
  • Trifolium flavumC. Presl
  • Trifolium luteolumSchur
  • Trifolium minusSm.
  • Trifolium praticolaSennen
  • Trifolium procumbens"L., p.p."
  • Trifolium procumbenssensu auct.

It is native to Europe, but can be found in many parts of the world as anintroduced species.

It is probably anallotetraploidwith 2n=32 that arose from the crossing ofTrifolium campestreandT. micranthum.[5]

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Similar plants

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Lesser hop trefoil,Trifolium dubium,may be confused with other plants that have three leaflets and small yellow flowers, such aslarge hop trefoil(T. aureum),hop trefoil(T. campestre),black medick(Medicago lupulina), andyellow woodsorrel(Oxalis stricta).

See also

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References

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  1. ^"The Plant List: A Working List of All Plant Species".Retrieved28 June2015.
  2. ^BSBI List 2007(xls).Botanical Society of Britain and Ireland.Archived fromthe original(xls)on 2015-06-26.Retrieved2014-10-17.
  3. ^NRCS."Trifolium dubium".PLANTS Database.United States Department of Agriculture(USDA).Retrieved15 December2015.
  4. ^Cooper, P.Shamrock shortage in Ireland sparks St. Pat's fears.Irish Central.
  5. ^Ansari, H. A., et al. (2008). Molecular and cytogenetic evidence for an allotetraploid origin ofTrifolium dubium(Leguminosae).Chromosoma117(2):159-67.
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