Suomi
Svenska
Compact Rush
Juncus conglomeratus
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Compact Rush is a tall, long‑lived rush that grows in dense tufts. It has almost leafless, upright stems and a tight, round flower head that looks as if it sits partway down the stem. You’ll see it in wet places such as shores, ditches and damp meadows.
Did you know?
- The tight flower head often looks off to the side because a long, stem‑like leaf continues above it.
- Stems are deeply grooved just below the flower head, a quick clue to its identity.
About the species
Identification
Forms dense tufts, 40–80 cm tall. Stems are upright, mostly leafless, and have deep grooves just below the flower head. Only brownish to reddish stem bases wrap the lower part; there are no normal green leaves. The flower cluster is many‑flowered and tight, like a small ball; a long, stem‑like piece continues above it, making the head look slightly off to the side. Later it bears small roundish brown seed cases with a tiny point. Compared with Soft Rush, the head is tighter and the stems feel grooved, not smooth. Flowers in Finland in June–July.
Plant group
Grasses, sedges and rushes
Habitat
yards and roadsides
Flowering
Jun–Jul
About the habitat
Grows on wet ground: lake and stream edges, wet meadows, ditches, and other damp, open places, often on clayey or nutrient‑rich soils. Common in southern and central Finland; absent from Lapland.
Sources
Photo: Ivar Leidus, CC BY-SA 3.0 https://commons.wikimedia.org/wiki/File:Juncus conglomeratus - keraluga Keilas.jpg
Text: Pinkka: Verso- ja leviäintunnistus - Kaikki versot, CC BY 4.0 https://laji.fi/taxon/MX.40203
Text: Pinkka: IPS-177 Fennoscandian flora - Hippophaë-Lythrum, CC BY 4.0 https://laji.fi/taxon/MX.40203
Text: Pinkka: Pieni maatalouslajintuntemus - Puuvartiset, CC BY 4.0 https://laji.fi/taxon/MX.40203
Text: Wikipedia (Finnish), CC BY-SA 4.0 https://fi.wikipedia.org/wiki/Ker%C3%A4p%C3%A4%C3%A4vihvil%C3%A4
