FLORA OF VIETNAM
Begoniaceae
Begonia umbrosa Aver., sp.nov.

Quang Binh Prov., Minh Hoa Distr., Dan Hoa Municipality, to the EEN of Bai Dinh village around point 17°45′27”N 105°47′46”E. Primary broad-leaved closed wet forest on very steep rocky slopes and cliffs of low remnant mountains composed with highly eroded solid marble-like limestone at elevation about 600-700 m a.s.l. Lithophytic herb on tall vertical shady cliffs, particularly on wet travertine deposits. Flowers light pink to nearly white, fragrant. Leaves uniform green. Very common.
HAL 12501 11 February 2009 Photo.
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.