Ash, Fraxinus excelsior.

Sessile oak, Quercus petraea, Aerial view of many wet, fallen brown leaves and an acorn.

Sessile oak, Quercus petraea, Front view of a sprig of pale new spring leaves against pale green.

Fox Nut, Euryale ferox, View of the large leaves in a pond showing the quilted texture.

Fox Nut, Euryale ferox, View of the large leaves in a pond showing the quilted texture.

Fox Nut, Euryale ferox, Aerial view of the large leaves in a pond showing the quilted texture.

Fox Nut, Euryale ferox, Aerial view of the large leaves in a pond showing the quilted texture.

Mizuna, Brassica rapa nipposinica, Top view of a mass of salad leaves with deeply cut edges.

Horseradish, Armoracia rusticana, Top view of several roots, some with leaves and one broken open.

Redbush or Rooibus, Aspalathus linearis, Side view of a mass of red twigs with needle like leaves used to make the tea.

Tea plant, Camellia sinensis, Front view of some twigs with older dark green leaves and buds used for white tea.

Palm, Fan palm, Close view of leaves backlit against the greenhouse window of Kew garden's Palm House, creating a pattern of green and light.

Switch grass, Panicum virgatum 'Shenandoah', Side view of mass of seedheads and golden brown leaves showing autumn red tinge.