Korea Flora: Habit: Evergreen perennial herb; entirely glandular-pubescent, aromatic; old leaves persistent.
Leaves: Caespitose, 10-20 cm × 2-4 cm; oblanceolate to broadly lanceolate; tapering at both ends.
Stipe: 3-8 cm long, densely scaly.
Scales: Brown; broadly ovate to broadly lanceolate, larger ones up to 5 mm long; margins serrulate.
Pinnae: Lanceolate, obtuse; 5-8 mm wide; deeply to completely pinnatifid; abaxial rachis with lanceolate scales.
Ultimate Segments: Oblong; apex obtuse or rounded; margins undulate to deeply and obtusely serrate.
Sori: Arranged in 1-3 rows near costa; indusia round-reniform, ca. 2 mm in diameter, overlapping or extending beyond segment margins; margins and surface with glandular hairs.
Habitat: Growing on rock faces at high elevations of Mt. Halla, Mt. Jiri, and northern mountainous regions.
Note: Distinguished by its aromatic nature, glandular pubescence throughout, and persistent old leaves.

[Translated from Flora of Korea by T.B. Lee]

 

Japan Flora: Rhizomes short, densely covered with brownish marcescent fronds; fronds small, uni­formly capitate-glandular; stipes crowded, many, short, 2-8 cm. long, spreading to ascending, straw-colored, brownish to­ward base; scales membranous, brown, rather many, ovate to broadly so, 3-7 mm. long, short-acuminate, minutely toothed; blades broadly lanceolate to broadly oblanceolate, 8-20 cm. long, 2.5-4 cm. wide, gradually acute to acuminate at both ends, 2- or 3-pinnatiparted, nearly scaleless above, with lanceo­late scales on costas beneath; pinnae firmly herbaceous, hori­zontally spreading, lanceolate, 4-8 mm. wide, obtuse, sessile; pinnules elliptic to oblong, 1.5-2 mm. wide, crenately or obtusely toothed; indusia large, brown, lustrous, persistent, very close and overlapping, orbicular-reniform, 1-1.5 mm. across, convex, the margins incurved. Rocks in mountains.

Hokkaido, Honshu (centr. and n. distr.); rare；Sakhalin, Kuriles, Kamchatka, Korea, Manchuria, Siberia to Europe, and N. America.