rannoch rush
Rannoch rush has only one species. It is a herbaceous perennial plant, native to cool temperate regions of the Northern Hemisphere, where it grows in wet Sphagnum peat bogs. It grows to 10 to 40 cm tall, with narrow linear leaves alternating up the stem, with a basal sheath. The leaf tips are blunt with a conspicuous pore. It has a creeping rhizome clothed in papery, straw coloured remains of old leaf bases. The flowers are greenish-yellow, with six tepals.