| Word | Definitions | Synonyms |
|---|---|---|
| diapensia | (noun) any boreal low-growing evergreen plant of the genus Diapensia | - |
| hortensia | (noun) deciduous shrub bearing roundheaded flower clusters opening green and aging to pink or blue | Synonyms: Hydrangea macrophylla hortensis |
| (noun) very tall branching herb with showy much-doubled yellow flower heads | Synonyms: double gold, golden glow, Rudbeckia laciniata hortensia |