| Hydrangeoideae | |
|---|---|
|   | |
| Philadelphus coronarius | |
| Scientific classification   | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Clade: | Asterids | 
| Order: | Cornales | 
| Family: | Hydrangeaceae | 
| Subfamily: | Hydrangeoideae Burnett [1] | 
| Type genus | |
| Hydrangea | |
| Tribes | |
| Synonyms | |
| Kirengeshomoideae  Engl.  [2]  Contents | |
Hydrangeoideae is a subfamily of the hydrangea family (Hydrangeaceae). It contains two tribes, Hydrangeeae and Philadelpheae. [3] The subfamily was described by Gilbert Thomas Burnett in 1835. [1]
Pollen grains from species within the subfamily are often subprolate to subspherical. [4] The leaf venation is largely camptodromous. [5]