‘The creation of a thousand forests is in one acorn.’ ~ Ralph Waldo Emerson

Though I knew that the presence (so, Pedunculate) or absence (no peduncle, so Sessile) of a stalk on the acorns of an Oak tree is how to tell those two species apart, I hadn’t really noticed before the differences in the ‘woolly hats’ (cupules) on the acorns of the various Oak species. Below are, firstly, the Pedunculate (or English) oak (Quercus robur), followed by the Holm (or evergreen) oak (Quercus ilex). I couldn’t find a Sessile oak acorn as they don’t grow along the south Wales coast – they prefer the cooler upland woodlands further north.