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Schoenoplectus acutus ( syn. Scirpus acutus, Schoenoplectus lacustris, Scirpus lacustris subsp. acutus ), called tule / ˈtuːliː /, common tule, hardstem tule, tule rush, hardstem bulrush, or viscid bulrush, is a giant species of sedge in the plant family Cyperaceae, native to freshwater marshes all over North America.
Description. General: Sedge Family (Cyperaceae). Hardstem bulrush is a perennial, rhizomatous, wetland obligate species that reaches up to 3 m (10 ft) in height and forms very dense stands. The stems are upright, gray-green to dark-green, round, 1 to 2 cm (0.4 to 0.8 in) thick and 1 to 3 m (3 to 10 ft) tall.
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Schoenoplectus acutus, formerly Scirpus acutus, is a common wetland species, often found in standing water up to 5 feet deep along lake and pond margins, and may form dense stands. It closely resembles two other Minnesota Schoenoplectus species: Schoenoplectus heterochaetus and Schoenoplectus tabernaemontani.
The vegetation is dominated by bulrushes and robust graminoids, with scattered emergent forbs. Trees and shrubs are absent. Dominant species are usually Schoenoplectus acutus (= Scirpus acutus), Schoenoplectus tabernaemontani (= Scirpus tabernaemontani), and/or Schoenoplectus americanus (= Scirpus americanus).
Schoenoplectus acutus × Schoenoplectus tabernaemontani → This uncommon bulrush hybrid is to be expected anywhere both parents are found growing together. are found growing together. Utilizing only reproductive characters, one can find it difficult to distinguish this hybrid without extreme familiarity with the parental taxa.
Scientific name: Scirpus acutus or Schoenoplectus acutus. Plant family: Cyperaceae. Description: Scirpus acutus is a perennial monocot whose thick and stiff culms (or stalks) can grow up to 15 feet high. The inflorescence of S. acutus is composed of clusters of red-brown spikelets. These flowers are very small, lack petals, and are concealed by ...
Schoenoplectus tabernaemontani (synonym: Scirpus validus) , a similar species, has as much as 8% sugar and 5.5% starch in rhizomes, but less than 1% protein (Harrington 1972). The rhizome (underground stem) is used for the black element in basket design. Rhizomes are obtained by digging around the plant and following them out from the parent plant.
