List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• Haplopteris flexuosa (species of shoestring fern)

usually written using kana alone  noun  noun (generic) 

• Osmunda banksiifolia (species of fern)

usually written using kana alone  noun  noun (generic) 

• Polystichum tripteron (species of the wood fern family)

usually written using kana alone  noun  noun (generic) 

• Japanese claw fern (Onychium japonicum), carrot fern

usually written using kana alone  noun  noun (generic) 

• tuberous sword fern (Nephrolepis cordifolia)

usually written using kana alone  noun  noun (generic) 

• European waterclover (Marsilea quadrifolia), pepperwort, water shamrock

usually written using kana alone  noun  noun (generic) 

• Adiantum monochlamys (species of maidenhair fern)

usually written using kana alone  noun  noun (generic) 

• brush pot tree (Cyathea lepifera), flying spider-monkey tree fern

usually written using kana alone  noun  noun (generic) 

• autumn fern (Dryopteris erythrosora), Japanese shield fern, Japanese wood fern, copper shield fern

usually written using kana alone  noun  noun (generic) 

• Thelypteris acuminata (species of fern)