Plants : JuncaceaeFerns and Flowering Plants

Juncus bulbosus L.

Bulbous Rush

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Juncus bulbosus

Description: A small, very variable, perennial grass-like native plant with stems somewhat swollen at their bases; sometimes the stems flop over and root at the nodes. Frequently it is viviparous i.e. the flowers are replaced by tiny shoots.

An aquatic free-floating form (var. fluitans) grows in lakes; it has long weak thread-like stems and leaves and is much branched.

All names: Juncus bulbosus L.; Juncus kochii F.Schultz; Juncus bulbosus sens. lat. L.; Juncus supinus Moench

Distribution Map from NBN: Juncus bulbosus at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Juncus bulbosus at iNaturalist World Species Observations database.

 Hackney, P., 2026. Juncus bulbosus. L.. [In] Flora of Northern Ireland.
https://habitas.org/flora/species.php?item=2234. Accessed on 2026-11-02.