List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• sweet pea (Lathyrus odoratus)

usually written using kana alone  noun  noun (generic) 

• Norway spruce (Picea abies)

usually written using kana alone  noun  noun (generic) 

• cudweed (Gnaphalium japonicum)

usually written using kana alone  noun  noun (generic) 

• potato bean (Apios americana), hog peanut, hopniss, Indian potato, groundnut, ground pea

usually written using kana alone  noun  noun (generic) 

• Japanese yam (Dioscorea japonica)

usually written using kana alone  noun  noun (generic) 

• lesser yam (Dioscorea esculenta)

usually written using kana alone  noun  noun (generic) 

• lesser hop trefoil (Trifolium dubium), suckling clover

usually written using kana alone  noun  noun (generic) 

• black medic (Medicago lupulina), black hay, black nonsuch, blackweed

usually written using kana alone  noun  noun (generic) 

• black gram (Vigna mungo), black lentil

usually written using kana alone  noun  noun (generic) 

• Sophora flavescens