Original caption: A yellow maple (Acer saccharum) leaf against a white background. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: A yellow maple (Acer saccharum) leaf against a white background. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: A yellow maple (Acer saccharum) leaf against a black background has green edges. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: A red maple (Acer saccharinum) leaf against a black background has fungus. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: A yellow maple (Acer saccharum) leaf against a white background has green edges. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: A yellow ginko (Gingko biloba) leaf against a white background. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: An American linden (Tilia americana) leaf chewed on the edges against a white background. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: An orange maple (Acer saccharinum) leaf against a black background. --- Image by © Chad Kleitsch/Science Faction/Corbis
01 Feb 2006 --- Scotch broom (Cytisus scoparius) is a common shrub native to Europe, and an introduced species in North America. It is considered a noxious invasive species in California and the Pacific Northwest. These legumes, or seed pods, will blacken when mature, and burst with an audible crack. --- Image by © Chad Kleitsch/Science Faction/Corbis
29 Sep 2003 --- A red and green grapevine leaf (Ampelopsis sp., Vitales family) with green veins on a black background. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: A red maple (Acer saccharinum) leaf against a black background. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: A red maple (Acer saccharinum) leaf against a black background has fungus. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: An Ampelopsis leaf from the grape vine family against a white background. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: An orange maple (Acer saccharinum) leaf against a white background. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: An orange maple (Acer saccharinum) leaf against a black background. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: A green Norway Maple (Acer platanoides) leaf against a black background. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: A red maple (Acer saccharinum) leaf against a white background. --- Image by © Chad Kleitsch/Science Faction/Corbis
Original caption: Maple (Acer saccharum) leaves, red and yellow, against a black background. --- Image by © Chad Kleitsch/Science Faction/Corbis
16 Oct 2004 --- A red-orange sassafras leaf (family Lauraceae) on a black background. --- Image by © Chad Kleitsch/Science Faction/Corbis
29 Sep 2003 --- A red grapevine leaf (Vitales family) with green veins on a black background. --- Image by © Chad Kleitsch/Science Faction/Corbis