Hedyotis is a very problematic genus or group of genera. Neither the overall identity and limits of this lineage, nor the evolutionary patterns within it, are at all understood or delineated. Widely differing treatments have long been used in different regions and floras. The situation is far from resolution or even general consensus and so many authors treat the genus very broadly[
]. In line with several recent (up to 2013) molecular and phylogenic studies, the Kew â€˜World Checklist of Selected Plant Familiesâ€™ has recognised a number of distinct genera and this is the treatment we are adopting here[
This species has very often been confused with Oldenlandia diffusa (Willd.) Roxb., which is also a common weed, and which possibly has comparable uses and properties[
Hedyotis brachypoda (DC.) Sivar. & Biju
Oldenlandia brachypoda is a slender, prostrate to erect annual plant growing up to 50cm tall. The stems are usually diffusely branched from the base[
The plant is harvested from the wild for local use as a medicine.
E. Asia - China, India, Nepal, Bangladesh, Vietnam, Malaysia, Indonesia, Philippines.
Usually found in humid or swampy locations such as rice fields and along streams; at elevations up to 1,100 metres, occasionally to 1,500 metres[
The plant is used for poulticing, apparently against lumbago. In India, a decoction of the whole plant is used to treat biliousness, fever and gonorrhoea[
Topical uses for this species are common and could be related to the presence of antiinflammatory iridoids[
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