N.Vietnam, Cao Bang Prov., Trung Khanh Distr., Ngoc Khe Municipality, Pac Nga village, around point 22є54'59''N, 106є31'44''E, at elevation 700-750 m a.s.l. Secondary wet closed evergreen forest on steep rocky slopes of rocky ridges and mesae composed with light gray solid marble-like highly eroded crystalline limestone. Treelet 4-6 m tall on lower part of slope and in rocky valley. Flowers white, later yellowish, light fragrant. Occasional.
N.Vietnam, Ha Tinh Prov., Huong Son Distr., Son Hong Municipality, around point 18є34'06''N, 105є11'40''E. Primary broad-leaved dry closed evergreen forest on very steep mt slopes of Khe Sinh stream canyon and along ridge composed with shale at elev. 600-1100 m a.s.l. near Laotian border. Shrub about 4 m tall. Fruits green. Not common.
Quang Binh Prov., Tuyen Hoa Distr., Lam Hoa municipality, near Ca Tang bridge crossing Gianh River, around point 17°57’31”N 105°48’43”E. Secondary broadleaved evergreen forest along river valley composed with stratified soft shale limestone at elev. about 60 m a.s.l. Terrestrial and lithophytic herb in open wet places. Flowers white. Occasional.
Quang Binh Prov., Tuyen Hoa Distr., Lam Hoa municipality, Hung village, around point 17°55’41”N 105°49’43”E.
Secondary shrubs along small river on flat alluvial valley between remnant limestone hills composed with highly eroded marble-like crystalline limestone at elev. About 100 m a.s.l. Scandent shrub to 3 m tall. Flowers yellow, inflorescence bracts white. Very common.
Quang Binh Prov., Tuyen Hoa Distr., Lam Hoa municipality, Hung village, around point 17°55’41”N 105°49’43”E.
Secondary shrubs along small river on flat alluvial valley between remnant limestone hills composed with highly eroded marble-like crystalline limestone at elev. About 100 m a.s.l. Shrub to 3 m tall. Flowers white, later yellowish. Common.
Son La Prov., Moc Chau Distr., Chieng Son comm., about 1 km to NE from Chieng Son village, around point 20°46’02.0N 104°37’03.1E. Remnants of primary broad-leaved evergreen forest on tops of hills composed with karstic highly eroded yellow-white limestone at elevation 1100-1050 m a.s.l. Shrub or small treelet 2-2.5 m tall in shady place. Flowers white. Not common.
Son La Prov., Moc Chau Distr., Chieng Son comm., about 1 km to NE from Chieng Son village, around point 20°46’02.0N 104°37’03.1E. Remnants of primary broad-leaved evergreen forest on tops of hills composed with karstic highly eroded yellow-white limestone at elevation 1100-1050 m a.s.l. Semi-woody vine 3-5 m long in open place. Flowers greenish. Not rare.
Son La Prov., Moc Chau Distr., Chieng Son comm., about 1 km to NE from Chieng Son Village, around point 20°46’02.0N 104°37’03.1E. Remnants of primary broad-leaved evergreen forest on tops of hills composed with karstic highly eroded yellow-white limestone at elevation 1150-1250 m a.s.l. Shrub 2-3 m tall on exposed mossy rocks near mountain top. Fruits green , fragrant. Not common.
Son La Prov., Moc Chau Distr., Chieng Son comm., about 1 km to NE from Chieng Son Village, around point 20°46’02.0N 104°37’03.1E. Remnants of primary broad-leaved evergreen forest on tops of hills composed with karstic highly eroded yellow-white limestone at elevation 1150-1250 m a.s.l. Shrub 2-3 m tall on exposed mossy rocks near mountain top. Fruits green , fragrant. Not common.
Ha Giang Prov., Vi Xuyen Distr., Tung Ba municipality, Khau Ca NR. Primary broad-leaved humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 700-1150 m a.s.l. around point 22°50’43.9’’N 105°07’18.5’’E. ( Khau Ca forest station to travel b,a,c to Minh Son to Lung village to Khau Ca Foretbstation) Teelet 3 m high. occasional.
10 May 2015 CPC 7877
Coll.: N.Q. Hieu, N.T.Hiep, T.B. Ngan, C.Q. Ngan, D.K. Harder, C. P. Tuy, G.C.Pao
Record creation: 2024-05-24, Galina Savich, PhotoScan D2.. Processing status: work_status_1Citation: Specimen LE 01276056 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01276056
Houphan Prov., Xon Distr., Nong Hua Pa Noi village, around point 20°13'02.1''N 103°24'23.3''E. Primary and secondary broad-leaved evergreen forest on very steep rocky mountain slopes composed by shaly limestone at elev. 1100-1200 m a.s.l.
Treelet 1 m tall in open rocky slope. Flowers white to light yellowish. Common.
Xiangkhouang Prov., Kham Distr., Huad village, Phou tat Vinh mt., around point 19°33'02.2'N 103°39'56.3'E.
Secondary broad-leaved evergreen dry forest on alluvial valley and on foothills of limestone remnant mountains at elev. 700-750 m a.s.l. Treelet 3-4 m tall in rather open place. Flowers yellowish. Occasional.
Luang Prabang prov., Ngoy distr., Don Khun village, near waterfall, around point 20°31'36.9''N 102°35'15.8''E.
Remnants of primary evergreen forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 450-550 m a.s.l. along mountain stream. Shrub 3 m tall in rather open place. Fruits dull pink, juicy. Not rare.
Luang Prabang prov., Ngoy distr., Nong Khiew village, Pha Deng Mountain around point 20°34'14.3''N 102°37'31.8''E.
Secondary semideciduous and evergreen dry forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 700-825 m a.s.l. Tree 6-8 m tall among secondary shrubs. Flowers yellow. Common.