* ''Ostryodium'' {{small|Desv. (1814)}}|synonyms_ref=<ref name = powo>[https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:331612-2 ''Flemingia'' Roxb. ex W.T.Aiton]. ''[[Plants of the World Online]]''. Retrieved 24 August 2023.</ref>}}
'''PengiringTengiring''' atau '''Hapapaan ''(Flemingia)''''' adalah [[genus]] tumbuhan dalam keluarga [[Fabaceae]] . Ia berasal dari Afrika sub-Sahara, Yaman, Asia tropika, dan Australasia. <ref name="powo2">[https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:331612-2 ''Flemingia'' Roxb. ex W.T.Aiton]. ''[[Plants of the World Online]]''. Retrieved 24 August 2023.</ref> Di Asia [[spesies]] ini tersebar di Bhutan, Burma, Cina, India; Indonesia, Laos, Malaysia, Nepal, Pakistan, Papua Nugini, Filipina, Sri Lanka, Taiwan, Thailand dan Vietnam. <ref>{{Cite book|vauthors=Lewis G, Schrire B, MacKinder B, Lock M|year=2005|url=https://books.google.com/books?id=iC9FAQAAIAAJ|title=Legumes of the World|publisher=The Royal Botanic Gardens, Kew|isbn=1900347806|pages=529}}</ref> <ref>{{Cite book|last=National Research Council|year=2002|title=Tropical Legumes: Resources for the Future|publisher=Books for Business/ The Minerva Group, Inc.|isbn=0894991922|pages=37–38}}</ref> Genus ini didirikan pada tahun 1812.
