When most of the leaves have fallen from shrubs and trees, I find it fascinating examining twigs and buds. This website even has a section called Winter Buds where I show photos of the buds from over 125 species.
The lilac bud always remind me of the “peace sign” from the 1960’s.
Over the past few winters, I have noticed something peculiar about Lilac buds.
Sometimes they are green:
and sometimes they are brown:
The brown buds have exactly the same structure as the green buds.
Why are some lilac buds green and others brown? It’s a mystery.
Sometimes you find the two in the same branches:
Another Lilac species, Japanese lilac, is also found in Toronto, but the angle between the buds is quite different than the angle found with Common Lilac.