The U.S. Postal Service launched its Vibrant Leaves postcard stamps on March 17, 2025, celebrating the vivid hues of fall ...

Plants which produce spectacular leaf colour in autumn generally look their most ... Acer palmatum (Japanese maple) There’s a ...

This food-making process takes place in the leaf in numerous cells containing chlorophyll ... while others give the sugar maple its brilliant orange. The autumn foliage of some trees show only yellow ...