Pelargonium hortorum vs bedding geranium

Pelargonium hortorum and bedding geranium both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pelargonium hortorum	Yes	No	No	No
bedding geranium	Yes	No	No	No

As nouns, Pelargonium hortorum and bedding geranium are synonyms defined as:

Pelargonium hortorum and bedding geranium: an upright geranium having scalloped leaves with a broad color zone inside the margin and white or pink or red flowers

Other synonyms of Pelargonium hortorum include fish geranium, zonal pelargonium.

Pelargonium hortorum (noun)	bedding geranium (noun)
an upright geranium having scalloped leaves with a broad color zone inside the margin and white or pink or red flowers	an upright geranium having scalloped leaves with a broad color zone inside the margin and white or pink or red flowers