Scleranthus perennis
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| Perennial knawel | ||||||||||||||||
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| Scleranthus perennis Linnaeus |
Perennial knawel (Scleranthus perennis L.) is a perennial herbaceous plant of the carnation family. It grows on sandy, dry, acidic soils. It can grow up to 15 cm high and has white flowers of 2-5 mm. The plant used to be economically significant as the major host plant of the Polish cochineal.

