FLORA OF VIETNAM. Fam. Urticaceae. Procris sp. N. Vietnam, prov. Son La, distr. Moc Chau, municipality Chieng Hac,. vicinities of Co Liu village (N 20°51' E 104°38'). Primary evergreen. broadleaved wet forest on very steep slopes and bluffs of remnant. karst limestone ridge at 900-1100 m elev. Lithophyte forb on shady. steep slopes. Not rare. No NTH 2955 29 May 1999. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 6300-98). . Collectors: N.T.Hiep, P.H.Hoang, Averyanov L.
Coordinates (geographic position):20° 51′ N, 104° 38′ E ±1000 mRecord creation: 2019-01-16, Leonid Averyanov, ILCE-7RCitation: Specimen LE 01041873 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01041873