Cleavers – Galium aparine

Galium aparine

Galium aparine

Galium aparine (cleavers) is an annual, seminiferous plant. It is also a creeping plant that is coarse and sticky when touching it. It grows on soils that are rich in humus, fertile. It can also grow on hardpan and moist-clayey soils.

Common names: cleavers, clivers, bedstraw, goosegrass, catchweed, stickyweed, sticky bob, stickybud, stickyback, robin-run-the-hedge, sticky willy, sticky willow, stickyjack, stickeljack, grip grass and velcro plant.

Description

The stem is creeping or crawling. It can grow up to 120 cm long/high. It has a square section and it its branched with hairy thorns that are oriented downwards.

Galium aparine - plant

The cotyledons are thick, robust, oval-elongated. The color of the cotyledons is green to blue. The cotyledons have retracted tips.

Galium aparine - cotyledon

The real leaves are lanceolate, wider at the tips and narrower towards the base and grouped in 4-8 leaf whirls that are located on every stem knot. The hairy thorns are oriented downwards (towards the base).

The flower is small and white. It is grouped into a 4-flower inflorescence, a multicolored cyme-typed. The flowers are located at the leaves’ axilla and have long peduncles, with 3 flowers, most of the time.

Galium aparine - flower

The germination period is from spring until autumn. The germination depth is superficial and it can barely reach 10 cm.

Galium aparine - seeds

Galium aparine - seeds 1

The blossoming period is from the beginning of summer until late autumn. The plant produces between 100 to 500 seeds.

Galium aparine - flower 1

How to fight this pest plant

The herbicides that are recommended when fighting the cleavers are: Sekator Progress, Mustang, Kelvin Top, Galera, Cerlit.

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