You chose Hallé's definition
Why?
Explain your answer.
A
These are not multiple trunks: they are branches.
B
These are several individuals growing close together, each with its own trunk.
C
The serviceberry can have a single or multiple trunks.
D
None of these answers.
The Amelanchier arborea
© Jardin botanique de Montréal (Daniel Fortin)
