List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• Gentiana thunbergii (species of gentian)

usually written using kana alone  noun  noun (generic) 

• Japanese climbing fern (Lygodium japonicum)

usually written using kana alone  noun  noun (generic) 

• Mackenzie's water hemlock (Cicuta virosa)

usually written using kana alone  noun  noun (generic) 

• southern crabgrass (Digitaria ciliaris)

usually written using kana alone  noun  noun (generic) 

• Indian goosegrass (Eleusine indica)

usually written using kana alone  noun  noun (generic) 

• groundhopper (esp. species Tetrix japonica)

usually written using kana alone  noun  noun (generic) 

• Pyrrosia tricuspis (species of felt fern)

usually written using kana alone  expression  noun  noun (generic) 

• false dragonhead (Physostegia virginiana), obedient plant

usually written using kana alone  noun  noun (generic) 

• wooden dowel, draw pin, key, cotter

usually written using kana alone  noun  noun (generic) 

• silver-lipped pearl oyster (Pinctada maxima), golden-lipped pearl oyster, white-lipped pearl oyster