Posts tagged with physiology

Folding up to save water

Cross section of a leaf of a hooked grass under the microscope. Photo by C.A. Lehnebach (c) Museum of New Zealand Te Papa Tongarewa.

Did you know that Hook Grasses can control water loss by folding up their leaves?  Contrary to their common name,  Hook Grasses are not grasses but Sedges and they belong to the family Cyperaceae.  Sedges are commonly found in wet or poorly drained habitats. Hook Grasses, however, can be found in a much greater diversity of habitats. In New Zealand, Hook Grasses can grow… Read more »