FLORA OF VIETNAM
Aristolochiaceae
Aristolochia contorta Bunge

Quang Binh Prov., Minh Hoa Distr., Hoa Son municipality, B’Lam Lang limestone mt., around point 17°42′12.1”N 105°47′39.0”E.

Primary selectedly logged closed evergreen broad-leaved forest on near top ridge of silicat at elevation about 620 m a.s.l.

Terrestrial small woody vine, 7-10 m long. Rare. CPC 4233 15 August 2011
Coll.: N.T.Hiep, N.Q.Hieu, N.V.Tap, N.S.Khang, N.Q.Vinh & L.T.Kien.