Appearance
"Schoenoplectus lacustris" grows up to 3.5 metres tall, with stems 5–15 millimetres thick. Most of the leaves of "S. lacustris" are reduced to bladeless sheaths around the stem, but leaf blades up to 100 centimetres long can be formed under water. The inflorescence appears at the top of the stem, and comprises 3–10 branches, each of which is up to 10 cm long and may be again divided into shorter branches. The flowers are in the form of spikelets, each of which is 6–15 millimetres long by 3–5 mm wide.The stems of "S. lacustris" are round in cross-section, in contrast to the triquetrous stems of other species in the genus, such as "S. triqueter" and "S. pungens". The stems of "S. tabernaemontani" are also round, but "S. tabernaemontani" is a smaller plant, less than 1.5 m tall, with only two stigmas per flower.
Distribution
"Schoenoplectus lacustris" is widespread in Europe, albeit rare in the far north, and extends eastwards into Asia as far as Mongolia. It is also found in a number of Mediterranean sites in North Africa, and has been introduced to Haiti.References:
Some text fragments are auto parsed from Wikipedia.
