A portrait of one of our native Adoxaceae family shrubs. The berries of viburnum trilobum are edible, yet sour, and mainly enjoyed by wildlife. Nearly identical to its European cousin Viburnum opulus, the sole distinction between the two species being the petiolar glands. On the native trilobum species the petiolar glands are convex (or bulging outwards) while the non-native european opulus species has concave (sunken) petiolar glands.