Dipogon lignosus vs Dipogon

Dipogon lignosus and Dipogon both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dipogon lignosus	Yes	No	No	No
Dipogon	Yes	No	No	No

Dipogon lignosus (noun)	Dipogon (noun)
South African evergreen partly woody vine grown for its clusters of rosy purple flowers followed by edible pods like snap beans; also grown as green manure; sometimes placed in genus Dolichos	one species: Australian pea