Suomi
Svenska
Wood Club-Rush
Scirpus sylvaticus
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Wood Club-Rush is a tall, grass-like plant of wet ground. You can spot it in damp woods, along streams and rivers, muddy ditches, and at the edges of wet meadows. It carries a big, rounded, many-branched flower head made of countless tiny dark clusters. It is widespread across much of Europe.
Did you know?
- The flower head can hold well over a hundred tiny heads.
- Its stem has three edges and is solid rather than hollow.
About the species
Identification
Stout perennial, usually 50–100 cm tall. Stem upright, bluntly three‑edged and solid, with leaves almost to the top. Leaves long, flat and bright green, about 6–15 mm wide; the edges and the main vein underneath feel slightly rough. Flower head large and almost ball‑shaped, branching several times; branchlets feel rough. The many tiny egg‑shaped heads sit in pairs or threes. Later it forms small hard three‑edged seeds. Unlike other club‑rushes with round, mostly leafless stems and looser side clusters, this one is leafy and the head looks rounded and crowded. Flowers in Finland in July–August.
Plant group
Grasses, sedges and rushes
Habitat
mire
Flowering
Jul–Aug
About the habitat
Grows in wet deciduous woods, on stream and river banks, in clayey ditches, and along the margins of wet pastures; prefers muddy, nutrient‑rich ground that stays moist or shallowly flooded. Mainly south of a line from Oulu to Joensuu.
Sources
Photo: Agnieszka Kwiecień, Nova, CC BY-SA 4.0 https://commons.wikimedia.org/wiki/File:Scirpus sylvaticus Sitowie leśne 2022-05-29 Sołtysowice 01.jpg
Text: Pinkka: BIO-503 Suomen kasvisto ja kasvillisuus - Sisävedet: rantaniityt, CC BY 4.0 https://laji.fi/taxon/MX.40244
Text: Pinkka: Pieni maatalouslajintuntemus - Puuvartiset, CC BY 4.0 https://laji.fi/taxon/MX.40244
Text: Wikipedia (Finnish), CC BY-SA 4.0 https://fi.wikipedia.org/wiki/Korpikaisla
