Prunus pensylvanica (pin cherry) leaf petiole cross section with extrafloral nectary.
|
|
|
|
||
| hi-res image | |||||
| Nectaries | |||||
| Curtis, Lersten, and Nowak 2002 rev. 2015 | |||||
Prunus pensylvanica (pin cherry) leaf petiole cross section with extrafloral nectary. |
|||||