Blechnum orientale L., Sp. Pl. 2: 1077. 1753; DeVol in Fl. Taiwan 1: 151. 1975.
烏毛蕨
Blechnopsis orientalis (L.) Presl, Epim. Bot. 117. 1849; H. lto in Bot. Mag. Tokyo 53: 24. 1939.
Caudex short, erect, densely covered with linear-lanceolate, dark brown scales. Stipes tufted,
shorter than laminae, 30-60 cm long, scaly at base when young; fronds pinnate; pinnae linearlanceolate,
wide spreading, glabrous; median pinnae 10 to 40 cm long, to 1.8 cm wide, base of pinnae
adnate on lower side, free on upper side; veins free, parallel, simple or forking from near costa. Sori
costal, linear, reaching from base nearly to apex; indusia very narrow.
TAIPEI: Kankou, Kao 3689; Neihu, Kuo 57. ILAN: Is. Kueishan, Kuo 1558; Nanao, Masamune s. n. 1938.
MIAOLI: Shihtoushan, Liu 304. TAICHUNG: Tungshih, Simozawa 216. NANTOU: Sun Moon Lake, DeVol 6044;
Kuantaochi, Huang & Kao 6023. KAOHSIUNG: Fengshan, Moritani 45. PINGTUNG: Kuskus, Kudo & Suzuki
1599. TAITUNG: Tawu, Chuang 2051; Is. Lanyu, Huang & Kao 5465, Shieh 135.
Distributed in tropical Asia, Australia and Pacific Islands. Growing on the exposed low hillsides to
about 1500 m altitude mountains.
