List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• Old World forked fern (Dicranopteris linearis)

usually written using kana alone  noun  noun (generic) 

• Solomon's seal (Polygonatum falcatum)

usually written using kana alone  noun  noun (generic) 

• common water hyacinth (Pontederia crassipes)

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

• silk tree (Albizia julibrissin)

usually written using kana alone  noun  noun (generic) 

• balloon vine (Cardiospermum halicacabum), love-in-a-puff

usually written using kana alone  noun  noun (generic) 

• scarlet rosemallow (Hibiscus coccineus)

usually written using kana alone  noun  noun (generic) 

• Themeda triandra var. japonica (variety of kangaroo grass)
• Cymbopogon tortilis var. goeringii (variety of grass closely related to lemongrass)
• thatching grass, thatching sedge

usually written using kana alone  noun  noun (generic) 

• sweet viburnum (Viburnum odoratissimum)
• tree-shaped coral formation

usually written using kana alone  noun  noun (generic) 

• honey locust (Gleditsia japonica)

usually written using kana alone  noun  noun (generic) 

• planing (wood)