What is the fine-grained topic of the following text: Found in Myanmar, Thailand, Laos and Vietnam in low montane, seasonally dry forests as a medium sized, hot to warm growing epiphyte with cane-like, fusiform pseudobulbs with hairy sheaths and carrying, elliptical, persistent for several years, basally clasping, fine black hairy leaves that blooms in the late springthrough early fall on up to 3, subterminal, to 6 flowered inflorescence arising from last years and older pseudobulbs and carrying flowers that last several weeks. Only return the topic.
Flora of Southeast Asia