Suomi
Svenska
Slender Sedge
Carex lasiocarpa
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Slender Sedge is a tall, grass-like plant of bogs and pond edges that forms dense stands. It has thread-thin leaves and few, narrow flower clusters with male flowers above and female below. The small seed cases are grey-brown and distinctly short‑hairy, a useful clue.
Did you know?
- The species is wind‑pollinated.
- It can hybridise with several other sedges.
About the species
Identification
Perennial forming dense stands, 30–100 cm tall. Stems thin, upright, smooth. Leaves as long as the stems, very narrow (1–2 mm), dark grey‑green with rolled edges, looking thread‑like; leaf bases yellow to reddish brown. Flowering part has a few slender, upright clusters: 1–3 male at the top, 1–3 female below. The small seed cases around each seed are egg‑shaped, grey‑brown and clearly short‑hairy, with a deep, wide notch at the tip. Compared with bottle sedge, leaves are much narrower and the seed cases are smaller and hairy, not big and swollen. Flowers in Finland in June–July.
Plant group
Grasses, sedges and rushes
Habitat
mire
Flowering
Jun–Jul
About the habitat
Grows in open fens and other wet peatlands, swampy woods, and along the edges of bog ponds; often on very wet ground and sometimes in shallow water. Common almost throughout the country; rather rare in the far northwest Arm of Lapland.
Sources
Photo: Quinten Wiegersma, CC BY 4.0 https://www.gbif.org/occurrence/6399468858
Text: Pinkka: BIO-503 Suomen kasvisto ja kasvillisuus - Sisävedet: humusjärvet, CC BY 4.0 https://laji.fi/taxon/MX.40337
Text: Pinkka (Luomus), CC BY 4.0 https://laji.fi/taxon/MX.40337
Text: Pinkka: A Pohjolan kasveja - Carex, CC BY 4.0 https://laji.fi/taxon/MX.40337
Text: Wikipedia (Finnish), CC BY-SA 4.0 https://fi.wikipedia.org/wiki/Jouhisara
