Herbarium LE - Specimens

Melastomataceae

Sonerila annamica Guillaumin

Ha Giang Prov., Quan Ba Distr., Thai An Commune, Seo Lung Two Village, around point 22.96988ºN 105.08646ºE. Very steep mountain slopes composed of stratified shale and clayey subsoil at elevation 800–1000 m a.s.l. Primary and secondary evergreen broad-leaved humid forest. Terrestrial herb on very steep wet shady slope. Flowers pink, anthers yellow. Occasional. 10 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1499.

Orchidaceae

Liparis chapaensis Gagnep.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Clustering lithophyte on vertical wet mossy stream cliffs. Flowers dull orange-brown. Very common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1430.

Orchidaceae

Bulbophyllum repens Griff.?

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Creeping epiphyte on old mossy tree along stream. Rare.

7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1429.

Lycopodiaceae

Lycopodium cernuum L.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Creeping herb with erect stems to 0.5 m tall in open grassy place along trail. Common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1428.

Rubiaceae

Nertera sinensis F.B. Forbes & Hemsl.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Prostrate creeping lithophytic herb on wet mossy stream rocks. Fruits pale dull blue to almost black. Locally very common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1427.

Asteraceae

Bidens sp.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Biennial lithophytic herb to 0.5 m tall on wet mossy stream rocks. Flowers yellow. Occasional. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1426.

Orchidaceae

Stereochilus erinaceus (Rchb.f.) Garay?

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Clustering epiphyte on old mossy tree along stream. Locally common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1425.

Orchidaceae

Stereochilus erinaceus (Rchb.f.) Garay?

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Clustering epiphyte on old mossy tree along stream. Locally common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1424.

Rubiaceae

Mycetia sp.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Undershrub 1-1.5 m tall on steep shady river slope. Common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1423.

Polypodiaceae s.l. (Dryopteridaceae)

Bolbitis heteroclita (Pr.) Ching

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Terrestrial and lithophytic fern on steep shady river slope near to water line. Very common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1422.

Polypodiaceae s.l. (Tectariacae)

Tectaria stenoptera Ching

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Terrestrial fern on steep shady river slope. Fronds to 1.5 long. Very common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1421.

Orchidaceae

Odontochilus inabae (Hayata) Ohwi?

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Creeping terrestrial herb with uniform velvety green leaves on steep shady slope. Flowers pale brownish, lip white. Rare. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1420.

Orchidaceae

Eria paniculata Lindl.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Clustering epiphyte on old mossy trees along river. Common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1419.

FLORA OF VIETNAM

Orchidaceae

Coelogyne dolichopoda Aver. & K.S. Nguyen

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Creping epiphytic vine to 3 m long on old mossy trees along river. Not rare.

7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1418.

Orchidaceae

Coelogyne dolichopoda Aver. & K.S. Nguyen

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Creping epiphytic vine to 3 m long on old mossy trees along river. Not rare. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1418.

Rubiaceae

Ophiorrhiza sp.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Lithophytic herb on wet mossy stream rocks. Flowers light pink-violet to almost white. Very common. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1417.

Lamiaceae

Isodon lophanthoides (Buch.-Ham. ex D. Don) H. Hara var. lophanthoides

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Terrestrial herb in open grassy place along trail. Flowers light violet to almost white. Common weed. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1416. Det.: Chen Yaping 30.11.2019

Lamiaceae

Pogostemon auricularius (L.) Hassk.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Terrestrial herb in open grassy place along trail. Flowers light violet to almost white. Common weed. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1415. Det.: Chen Yaping 30.11.2019

Lamiaceae

Mosla scabra (Thunb.) C.Y. Wu & H.W. Li

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Terrestrial herb in open grassy place along trail. Flowers pink to light purple. Common weed. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1414. Det.: Chen Yaping 30.11.2019

Lamiaceae

Isodon lophanthoides var. graciliflorus (Benth.) H. Hara

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Terrestrial herb in open grassy place along trail. Flowers white. Common weed. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1413. Det.: Chen Yaping 30.11.2019

Begoniaceae

Begonia palmata D. Don

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Lithophytic herb on shady mossy river cliffs slope. Leaves dark uniform green above, pale light green below, sometime with pink tint along nerves. Locally common. Fruits pink-purple. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1412.

Myrsinaceae

Ardisia phankelociana C.M. Hu & G. Hao

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Small treelet 1-2 m tall. Fruits dark glossy green. Very common at mountain top. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1407.

Arecaceae

Arenga gracilis (Beccari) Henderson & Nguyen Quoc Dung

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Palm 1 m tall on shady, very steep slope. Occasional. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1409. Det.: A. Henderson 10.12.2019

Arecaceae

Pinanga baviensis Becc.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349ºN 104.86446ºE, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Remnants of primary evergreen broad-leaved very humid forest along river. Palm 2 m tall on shady, very steep slope. Fruits dirty dark purple-violet. Occasional. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1408. Det.: A. Henderson 10.12.2019

Acanthaceae

Strobilanthes sp.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb or undershrub to 3 m tall in wet humid places at the mountain base. Flowers dark blue-violet. Very common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1406.

Clusiaceae

Garcinia sp.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree to 20 m tall. Fruits green. Very common. Timber is good. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1405.

Taxaceae

Taxus chinensis (Rehder & E.H. Wilson) Rehder

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Treelet 2 m tall. Not common (may be common, but widely logged for sale). 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1404.

Balsaminaceae

Impatiens sp.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb 0.5-0.7 m tall in open rocky place. Flowers light pink with purple nerves. Common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1403.

Lamiaceae

Paraphlomis javanica Prain

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb 1-2 m tall in open rocky place. Very common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1402. Det.: Chen Yaping 30.11.2019

Zingiberaceae

Zingiber cochleariforme D. Fang

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial herb to 3 m tall in open rocky place. Flowers yellow, the lip with brownish marks. Edible being fried with meat. Not common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1401.

Fagaceae

Lithocarpus balansae (Drake) A.Camus

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree to 20-25 m tall. Fruits pale gray-brownish to 5 cm in diameter, seeds 2-3 cm in diameter, edible, but bitter. Common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1400.

Ericaceae

Agapetes guangxiensis D. Fang

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Epiphytic undershrub with pendulous shoots to 2 m long, stem black hairy. Flowers white to very light pinkish, apex light greenish. Not common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1399. LE01066650

Solanaceae

Solanum pittosporifolium Hemsl.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Herbaceous vine 2 m long in open place. Not common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1398.

Orchidaceae

Ornithochilus difformis Schltr.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Epiphyte on mossy tree. Not common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1397.

Annonaceae

Polyalthia sp.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree about 5 m tall. Fruits glossy black. Very common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1396.

Rosaceae

Eriobotrya elliptica Lindl.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree to 10 m tall with very hard timber used locally for agricultural tools and logged widely. Flowers white, very fragrant. Common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1395.

Flacourtiaceae

Hydnocarpus anthelminthicus Pierre ex Gagnep.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree to 10 m tall. Flowers caulifloric. Fruits globular about 10-12 cm in diameter, pale brownish, very hard, with many seeds and juicy edible endocarpium. Not common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1394.

Apocynaceae

Tabernaemontana corymbosa Roxb. ex Wall.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree 3-5 m tall. Fruits bright orange-yellow, longitudinally prominently 2 ridged. Common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1392.

Araliaceae

Schefflera sp.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree 3-4 m tall. Flowers pale green. Not common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1391.

Pittosporaceae

Pittosporum balansae A. DC. (or P. chochinchinensois?)

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree 5-7 m tall. Fruits dull yellowish-green. Common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1390.

Rubiaceae

Aidia sp.?

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree 5-7 m tall. Fruits green, ovoid. Common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1389.

Rutaceae

Clausena anisata (Willd.) Hook.f.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree to 10 m tall. Ripe fruits black, edible. Common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1388.

Euphorbiaceae

Sauropus brevipes Müll.Arg.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial undershrub 1-1.5 m tall in open place. Flowers pale yellow. Occasional. Not rare. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1387.

Convallariaceae

Tupistra fungilliformis F.T. Wang & S. Yun Liang

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Epiphyte on mossy tree. Fruits green with purple markings. Not rare. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1386.

Meliaceae

Aglaia cucullata (Roxb.) Pellegr.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Tree about 5 m tall. Fruit light pale brown. Common. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1385.

Convallariaceae

Ophiopogon latifolius L. Rodr.

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Kho My Village, around point 23.08460ºN 104.88377ºE steep rocky slopes composed with highly eroded limestone at elevation 1000–1250 m a.s.l. Primary evergreen broad-leaved very humid forest. Terrestrial undershrub with woody stem to 1 m tall. Flowers light violet. Occasional. 6 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1384.