Perhaps for John Standish (1814-1875) a nurseryman of Ascot in Berkshire, England who imported from Japan.
Rhizome: short-creeping, scaly.
Frond: 100 cm high by 30 cm wide, evergreen, monomorphic, blade/stipe ratio: 2:1.
Stipe: straw-colored, dark at base, scales on stipes pale brown, larger ones to 2 cm long, linear-lanceolate and very dense on lower portion, vascular bundles: 4 or more in an arc.
Blade: 3-pinnate, oblong-lanceolate, soft, dull green, papery, scales on lower surface of veins linear, 0.5--1 mm long.
Pinnae: 15 to 25 pair, oblong, moderately acute; pinnules broadly oblong, acute at apex, sessile or very short-stalked; costae grooved above, continuous from rachis to costae to costules; margins toothed; veins free, forked, barely visible.
Sori: round, near the midrib, indusium: reniform, tan, attached at a sinus, sporangia: black.
Habitat: on moist ground in mountain forests, common in Cryptomeria forests.
Distribution: Japan, Korea.
Hardy to -30°C, USDA Zone 4, but Zone 6 also reported.
Polystichum standishii (T. Moore) C. Christensen
Lastrea standishii T. Moore
Rumohra standishii (T. Moore) Ching