FLORA OF VIETNAM Orchidaceae Dendrobium sulcatum Lindl.
Tuyen Quang Prov., Na Hang Distr., Sinh Long Municipality, Khuoi Phin village, around point 22°38′21.9″N, 105°20′43.5″E. Primary evergreen mixed humid forest on rocky limestone on highly eroded karstic hills composed with gray solid marble-like limestone at elevation 1100-1200 m a.s.l. Lithophytic herb on vertical cliff. Flowers brightly yellow, lip with dark brown spot. Common. 29 September 2013 CPC 5319a (TM 1005 living specimen only) L.Averyanov, N.T.Hiep, L.M.Tuan, N.S.Khang, D.V.Cuong, N.V.Truong.T.Maisak, L.Osinovets
Flowered in cultivation 20 May 2016. Flowers yellow, lip yellow with brown lateral marks in basal half.
Coordinates (geographic position):22° 38′ 21.9″ N, 105° 20′ 43.5″ E ±1000 mRecord creation: 2020-06-12, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01067633 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01067633