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Japanese royal fern (Osmunda japonica) profile

Written by Maggie

Mar 08 2021

Japanese royal fern (Osmunda japonica) profile

Japanese royal fern (Osmunda japonica), also known as Asian royal fern, is one of the most common ferns in China's warm temperate and subtropical regions. Japanese royal fern extends from Shandong (Laoshan) in the north to Guangdong and Guangxi in the south, from the sea in the east to Yun, Guizhou and western Sichuan in the west, and reaches the southern slope of Qinling Mountains in the north. Japanese royal fern is also widely distributed in Japan, Korea, northern India (Himalayas).

Japanese royal fern picture

Japanese royal fern

Japanese royal fern plants are 50-80 cm or more tall. Rhizome short and stout, or short trunk-like and slightly curved.

Morphological characteristics of Japanese royal fern

The root

Japanese royal fern plants are 50-80 cm or more tall. Rhizome is short and stout, or short trunk-like and slightly curved.

Leaf

Japanese royal fern leaves are clustered, erect, stalks 20 -- 30 cm long, straw-colored, densely tomentose when young, soon shed; Leaf blade is triangular broadly ovate, 30 -- 50 cm long, 25 -- 40 cm wide, apical pinnate, below the second pinnate; Pinnae 3-5 pairs, opposite, oblong, 15-25 cm long, base 8-11 cm wide, base pair slightly larger, stipe (stalk 1-1.5 cm long), oblique upward, odd-pinnate; Small pinnae has 5-9 pairs, opposite or nearly opposite, sessile, separation, 4 to 7 cm long, 1.5 1.8 cm wide, oblong or long lanceolate, apex obtuse or acute, slightly to the base slightly wide, round, or nearly cross-sectional shape, 1.5 2 cm apart, smaller upwards, the isomorphism, with handle, base often with 1-2 slices hopson rounded lobes, or broadly wearing short 3-lobed, margin with uniform finely serrate.

The veins of japanese royal fern are conspicuous on both sides, oblique upward from midrib, bifurcated, and the veins parallel to serrate.

The leaves of japanese royal fern are papery, smooth and glabrous when grown, brownish green when dried. Sporophylls (fertile leaves) as tall as vegetating leaves, or often slightly taller, pinnules and pinnules shortened, linear, 1.5-2 cm long, densely sporangia along the dorsal side of the middle rib.

Ecological habits of Japanese royal fern

Japanese royal fern grows on acidic soil under trees or by streams. Leaf spores between spring and summer out, dark brown, mature after dying.

Japanese royal fern

The distribution area of the Japanese royal fern

Japanese royal fern is one of the most common Ferns in China's warm temperate and subtropical regions. japanese royal fern extends from Shandong (Laoshan) in the north to Guangdong and Guangxi in the south, from the sea in the east to Yun, Guizhou and western Sichuan in the west, and reaches the southern slope of Qinling Mountains in the north. Japanese royal fern also widely distributed in Japan, Korea, northern India (Himalayas).

Japanese Royal Fern is distributed in Gansu, Shandong, Jiangsu, Anhui, Zhejiang, Jiangxi, Fujian, Henan, Hubei, Hunan, Guangdong, Guangxi, Sichuan, Guizhou, Yunnan and other provinces.

Japanese royal fern uses

Healthcare value

The young leaves of Japanese royal fern are edible. The wire-like fibrous roots are the culture agent for epiphytes.

In spring, the young leaves of the boxing roll are picked and fried with meat, delicious. Japanese royal fern can be dried into dried vegetables or salted

Garden use of Japanese royal fern

Japanese royal fern leaves have clear veins and tender green leaves that are translucent in the sun. They are best grown poolside, in trenches or in pots. Young leaves are excellent vegetables, and dead rhizomes are an excellent substrate for epiphytes. It can also be used as medicine.

Japanese royal fern