Phalaenopsis ubonensis, is a species of orchid native to Thailand and Laos. The specific epithet ubonensis refers to the Thai province Ubon.
Description This species of miniature, hot-growing, lithophytic orchid bears 6–12 leaves, which are 10–16 cm long, on 10–15 cm long stems. In summer and autumn, axillary, 50–150 cm long, erect, branched inflorescences produce fragrant, lavender, rose or lilac coloured flowers, which are larger than flowers of the allied species Phalaenopsis pulcherrima. The flowers are 5 cm wide.Phalaenopsis ubonensis (O.Gruss) J.M.H.Shaw. (2021, April 3). Pharmacognosy. Retrieved May 25, 2022, from http://www.epharmacognosy.com/2021/03/phalaenopsis-ubonensis-ogruss-jmhshaw.html
Ecology It is found in tropical lowland forests at elevations of 150–400 m above sea level.Phalaenopsis ubonensis (O.Gruss) J.M.H.Shaw 2014 SUBGENUS Parishianae SECTION Esmeralda Rchb.f. (n.d.). Internet Orchid Species Photo Encyclopedia. Retrieved May 25, 2022, from http://www.orchidspecies.com/phalubonensis.htm
Taxonomy This species has an affinity to Phalaenopsis pulcherrima and Phalaenopsis buyssoniana.Olaf Gruss "Phalaenopsis ubonensis aka Doritis ubonensis - A new species from Thailand and Laos" Phalaenopsis Journal of the International Phalaenopsis Alliance, Fourth Quarter, p. 13 and 26, Vol. 24(4) 2014
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