Black Locust (Robinia pseudoacacia) left, and Mulberry (Morus spp.) visible light and UV fluorescence.

Black Locust (Robinia pseudoacacia) left, and Mulberry (Morus spp.) visible light and UV fluorescence.

Black Locust and Mulberry wood can be difficult to tell apart, but the Black Locust fluoresces a yellow colour in UV.
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Black Locust (Robinia pseudoacacia) left,  and  Mulberry (Morus spp.) visible light and UV fluorescence.
Black Locust and Mulberry wood can be difficult to tell apart, but the Black Locust fluoresces a yellow colour in UV.
Ref:
Date:
Location:
Photographer: