I'm going to guess:

Cutleaf maple

Reasoning:

The word "maple" is spelled using leaf colored letters -> "leaf maple", and then parts of it are cut out -> "cut leaf maple".

New guess:

VARIEGATED

Reasons:

1. OP said the answer was a single word.
2. The word could be "MAPLE" and there is a variegated maple tree, which has leaves of multiple colors, like the letters.
3. If the consonants are dark and the vowels are light, the letters shown could instead be "VARIE". (from MacGyver88)
4. The title implies there is a letter or word you can't see (also from Macgyver88), meaning there could be the invisible word "GATED" at the end.

Old guess:

Cutleaf maple

Reasoning:

The word "maple" is spelled using leaf colored letters -> "leaf maple", and then parts of it are cut out -> "cut leaf maple".