pillwort การใช้

• The pale dog violet ( " Viola lactea " ) is particularly dependent on the heathland whilst the pillwort, slender centaury and chamomile thrive on winter-wet disturbed ground near and on paths and tracks.
• ""'Pilularia " "'or "'pillworts "'is a genus of unusual ferns of family Marsileaceae distributed in North Temperate regions, Ethiopian mountains, and the southern hemisphere in Australia, New Zealand, and western South America.