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. Lithophytic fern on shady wet river cliffs. Very common.
Record creation: 2026-03-03, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203824 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203824