Saxifraga aizoides vs rockfoil

Saxifraga aizoides and rockfoil both are nouns.

Word	Noun	Adjective	Verb	Adverb
Saxifraga aizoides	Yes	No	No	No
rockfoil	Yes	No	No	No

As nouns, rockfoil is a hypernym of Saxifraga aizoides; that is, rockfoil is a word with a broader meaning than Saxifraga aizoides:

Saxifraga aizoides: tufted evergreen perennial having ciliate leaves and yellow corymbose flowers often spotted orange
rockfoil: any of various plants of the genus Saxifraga

Other hypernyms of Saxifraga aizoides include breakstone, saxifrage.

Saxifraga aizoides (noun)	rockfoil (noun)
tufted evergreen perennial having ciliate leaves and yellow corymbose flowers often spotted orange	any of various plants of the genus Saxifraga