FLORA OF LAOS Acanthaceae Strobilanthes arborescens sp.nov. Luang Prabang prov., Pon Xay distr., Nam Bo village, around point 19°57'23.5''N 102°26'16.4''E. Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 650-750 m a.s.l. Deciduous treelet 2-4(5) m tall and to 15 cm DBH on open rocky mountain top. Flowers blue. Very common. Main co-dominant of primary scrub on open rocky mountain tops. LA-VN 2178 6 April 2017 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.Maisak, Vichith Lamxay, Koudkeo Phommachanh, Phizar Sayalath, Keooudone Souvannakhoummane.
Coordinates (geographic position):19° 57′ 23.5″ N, 102° 26′ 16.4″ E ±1000 mRecord creation: 2019-04-11, Leonid Averyanov, PhotoScan D1Citation: Specimen LE 01041831 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01041831