TROPICAL PLANT ENCYCLOPEDIA
Murdannia graminea
Grass LilyFamily: Commelinaceae
Origin: Australia
Murdannia graminea is a perennial grass-like herb to 50cm high with thick, tuberous roots. Flowers are carried in loose, branched inflorescences on stalks up to 60 centimetres tall. The individual flowers are three-petalled, two centimetres across and blue or lavender, rarely white.
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Link to this plant:
https://toptropicals.com/catalog/uid/murdannia_graminea.htm