Trifolium glomeratum
Encyclopedia
Trifolium glomeratum is a species of clover
Clover
Clover , or trefoil, is a genus of about 300 species of plants in the leguminous pea family Fabaceae. The genus has a cosmopolitan distribution; the highest diversity is found in the temperate Northern Hemisphere, but many species also occur in South America and Africa, including at high altitudes...

 known by the common names clustered clover and bush clover. It is native to Eurasia and North Africa and it is known elsewhere as an introduced species
Introduced species
An introduced species — or neozoon, alien, exotic, non-indigenous, or non-native species, or simply an introduction, is a species living outside its indigenous or native distributional range, and has arrived in an ecosystem or plant community by human activity, either deliberate or accidental...

. It easily takes hold in disturbed areas, becoming a common weed. It is an annual herb growing decumbent to upright in form with mostly hairless herbage. The leaves are made up of oval leaflets up to 1.2 centimeters in length. The inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...

s occur in leaf axils, each a headlike cluster of many flowers. Each flower has a calyx of sepal
Sepal
A sepal is a part of the flower of angiosperms . Collectively the sepals form the calyx, which is the outermost whorl of parts that form a flower. Usually green, sepals have the typical function of protecting the petals when the flower is in bud...

s with triangular points that bend outward, and a pink corolla.

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