List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• Microtis unifolia (species of orchid)

usually written using kana alone  noun  noun (generic) 

• Calanthe reflexa (species of orchid)

usually written using kana alone  noun  noun (generic) 

• bamboo orchid (Arundina graminifolia)

usually written using kana alone  noun  noun (generic) 

• Platanthera maximowicziana (species of orchid)

usually written using kana alone  noun  noun (generic) 

• Cyrtosia septentrionalis (species of orchid)

usually written using kana alone  noun  noun (generic) 

• Liparis makinoana (species of miniature orchid)

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

• orca, killer whale

irregular kanji usage  usually written using kana alone  noun  noun (generic) 

• touch-me-not (Impatiens textori), jewelweed

usually written using kana alone  noun  noun (generic) 

• Adenostemma lavenia (species of flowering plant)

usually written using kana alone  noun  noun (generic) 

• deep-veined maple (Acer argutum)