spring vetchling vs vetchling

spring vetchling and vetchling both are nouns.

Word	Noun	Adjective	Verb	Adverb
spring vetchling	Yes	No	No	No
vetchling	Yes	No	No	No

As nouns, vetchling is a hypernym of spring vetchling; that is, vetchling is a word with a broader meaning than spring vetchling:

spring vetchling: bushy European perennial having nodding racemose violet-blue flowers
vetchling: any of various small plants of the genus Lathyrus; climb usually by means of tendrils

spring vetchling (noun)	vetchling (noun)
bushy European perennial having nodding racemose violet-blue flowers	any of various small plants of the genus Lathyrus; climb usually by means of tendrils