Koenigia
Botanical name: Koenigia
Koenigia
Botanical name: Koenigia
Description
Species of koenigia are annual or perennial herbaceous plants, growing from taproots. The flowers are arranged in terminal or axillary inflorescences. The flowers have pale tepals: white, greenish to yellowish white or pink. The seeds are borne in achenes that are usually brown or black in colour and not winged. Koenigia species are found in meadows, along stream banks, or on rocky slopes in arctic, temperate and alpine regions of the Northern Hemisphere. 
Species of Koenigia
Koenigia alpina
Koenigia alpina (synonym Aconogonon alpinum), commonly known as alpine knotweed, is similar to Koenigia alaskana, but differs in leaf size and achene characteristics. It is native to Europe and temperate Asia. It is one of the parents of the cultivated hybrid Koenigia × fennica, the other being Koenigia weyrichii.
Koenigia divaricata
Koenigia divaricata is a Eurasian wildflower that is popular with gardeners for growing in ornamental gardens, particularly wildflower gardens. This plant, pollinated by insects, grows aggressively and is classed as an invasive species in upland Sri Lanka. In Russia, this plant has been tested as a potential commercial source of tannins.
Himalayan knotweed
Himalayan knotweed was historically cultivated as an ornamental garden plant due to its distinctive red stems adorned with white/pink blossom. It spreads easily and asexually, so since its introduction, it has spread and become invasive in India, Belgium and the UK, and it is considered a noxious weed in the US.
Weyrichs knotweed
Species of weyrichs knotweed are annual or perennial herbaceous plants, growing from taproots. The flowers are arranged in terminal or axillary inflorescences. The flowers have pale tepals: white, greenish to yellowish white or pink. The seeds are borne in achenes that are usually brown or black in colour and not winged. Weyrichs knotweed species are found in meadows, along stream banks, or on rocky slopes in arctic, temperate and alpine regions of the Northern Hemisphere.
Koenigia davisiae
Species of koenigia davisiae are annual or perennial herbaceous plants, growing from taproots. The flowers are arranged in terminal or axillary inflorescences. The flowers have pale tepals: white, greenish to yellowish white or pink. The seeds are borne in achenes that are usually brown or black in colour and not winged. Koenigia davisiae species are found in meadows, along stream banks, or on rocky slopes in arctic, temperate and alpine regions of the Northern Hemisphere.
Lesser Knotweed
Species of lesser Knotweed are annual or perennial herbaceous plants, growing from taproots. The flowers are arranged in terminal or axillary inflorescences. The flowers have pale tepals: white, greenish to yellowish white or pink. The seeds are borne in achenes that are usually brown or black in colour and not winged. Lesser Knotweed species are found in meadows, along stream banks, or on rocky slopes in arctic, temperate and alpine regions of the Northern Hemisphere.
Koenigia alaskana
Species of koenigia alaskana are annual or perennial herbaceous plants, growing from taproots. The flowers are arranged in terminal or axillary inflorescences. The flowers have pale tepals: white, greenish to yellowish white or pink. The seeds are borne in achenes that are usually brown or black in colour and not winged. Koenigia alaskana species are found in meadows, along stream banks, or on rocky slopes in arctic, temperate and alpine regions of the Northern Hemisphere.
Koenigia phytolaccifolia
Species of koenigia phytolaccifolia are annual or perennial herbaceous plants, growing from taproots. The flowers are arranged in terminal or axillary inflorescences. The flowers have pale tepals: white, greenish to yellowish white or pink. The seeds are borne in achenes that are usually brown or black in colour and not winged. Koenigia phytolaccifolia species are found in meadows, along stream banks, or on rocky slopes in arctic, temperate and alpine regions of the Northern Hemisphere.
Scientific Classification
Phylum
Vascular plants Class
Dicotyledons Order
Pinks, cacti, and allies Family
Buckwheat Genus
Koenigia 
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