List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• Corbicula japonica (species of basket clam)

usually written using kana alone  noun  noun (generic) 

• Asian green mussel (Perna viridis)

usually written using kana alone  noun  noun (generic) 

• Pronodularia japanensis (species of freshwater mussel)

usually written using kana alone  noun  noun (generic) 

• Uperotus clava (species of shipworm)

usually written using kana alone  noun  noun (generic) 

• pale grass blue (species of gossamer-winged butterfly, Pseudozizeeria maha)

usually written using kana alone  noun  noun (generic) 

• Japanese horse mussel (Modiolus nipponicus)

usually written using kana alone  noun  noun (generic) 

• golden mussel (Limnoperna fortunei)

usually written using kana alone  noun  noun (generic) 

• Acanthopanax sciadophylloides (species of flowering plant related to the aralias)

usually written using kana alone  noun  noun (generic) 

• Indigofera pseudotinctoria (species of legume)

rarely used kanji form  usually written using kana alone  noun  noun (generic) 

• Elatostema umbellatum var. majus (variety of plant related to the nettles)