FLORA OF VIETNAM Orchidaceae Paphiopedilum hirsutissimum (Lindl.) Stein var. esquirolei (Schltr.) Karasawa & Saito
N. Viet Nam. Ha Giang Province, Quang Ba District, at Sin Suoi Ho village on east side of Sin Suoi Ho river. Severely degraded forest with remnants of good habitat protected by sheer limestone rock faces along ridge, 23°06′57″N, 105°01′48″ at 650-750 m. Lithophyte among rocks. Calyx green with dark brown hairs, corolla appears dark purple. Frequent.