Carex rostrata, the bottle sedge or beaked sedge, [1] is a perennial species of sedge in the family Cyperaceae. The species is native to Holarctic fens and can be found in Canada and the northern part of the United States, [1] and most of Europe, including Britain, north to 71° N, and W. Asia, in wet peaty places with a high water table. [2]

An official website of the United States government. Here’s how you know

Carex rostrata is an occasional sedge of open, wet areas such as lake and stream margins, fens, bogs and floating mats in north-central and northeastern Minnesota, where it reaches the southern end of its range. It's often found growing in the shallow waters of bog pools and ponds, and forming large stands.

Beaked sedge is rare in New England, being found in only a few sites in far northern Maine and New Hampshire. It inhabits marshes, and lake and river shores. Plants are colonial from long rhizomes and have leaf blades that are u-shaped in cross …

Carex rostrata. Common Name. beaked sedge. Kingdom. Plantae. Location in Taxonomic Tree . Genus. Carex. Species. Carex rostrata. Identification Numbers. TSN: 39464. Geography. Launch Interactive Map. Working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people.

Carex rostrata Stokes. CARO6. Life Span: Perennial. Origin: Native. Season: Cool. Growth Characteristics: Beaked sedge is a large, frost-tolerant, water-obligate, sod-forming sedge. Its stems may be single or grouped together, ranging in height from 12 to 48 inches. It reproduces by seed, band stout, whitish rhizomes 1-9 inches long.

It is a perennial or rhizomatous geophyte and grows primarily in the temperate biome.

Carex rostrata is a PERENNIAL growing to 1 m (3ft 3in). It is in flower from June to July, and the seeds ripen from July to August. The species is monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and is pollinated by Wind.

Carex rostrata is infrequent and local in large portions of its range, often forming large colonies where found. Carex rostrata hybridizes with C. oligosperma and C. saxatilis; rare sterile intermediates with C. utriculata are likely hybrids.

Carex rostrata is smooth on the distal half of the leaf (opposed to scabrous in C. utricularia). In general, C. rostrata has narrower leaves and a blue-green glaucous color to the leaves. Ecological characteristics: A very rare plant found in open wetlands of northern Maine.