Like the branches, twigs and leaves of a tree, fractals repeat the same patterns across ... His 1911 work “De Grijze Boom” (“The Gray Tree”) shows a series of black lines against a gray background, ...

While light or neutral backgrounds are common, using a black background creates a distinct effect. Black adds contrast, draws attention to details, and makes the subject stand out uniquely. This ...

What makes a tree a tree? Or rather ... difference between these two paintings—they’re both black strokes on a basically gray background—is whether there is branch diameter scaling ...

On this edition of ID That Tree, Purdue Extension forester Lenny Farlee introduces you to the willow family, especially the black willow. The black willow is the only tree sized willow in Indiana.