shad-flower vs whitlow grass

shad-flower and whitlow grass both are nouns.

Word	Noun	Adjective	Verb	Adverb
shad-flower	Yes	No	No	No
whitlow grass	Yes	No	No	No

As nouns, shad-flower and whitlow grass are synonyms defined as:

shad-flower and whitlow grass: annual weed of Europe and North America having a rosette of basal leaves and tiny flowers followed by oblong seed capsules

Other synonyms of shad-flower include Draba verna, shadflower.

shad-flower (noun)	whitlow grass (noun)
annual weed of Europe and North America having a rosette of basal leaves and tiny flowers followed by oblong seed capsules	annual weed of Europe and North America having a rosette of basal leaves and tiny flowers followed by oblong seed capsules