High Quality Content by WIKIPEDIA articles! 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. A herbaceous plant (in botanical use simply herb) is a
plant that has leaves and stems that die down at the end of the
growing season to the soil level. They have no persistent woody
stem above ground. Herbaceous plants may be annuals, biennials or
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