Juncus minutulus is a species of rush (Juncaceae) informally[1] referred to as minute rush, dwarf toad rush and annual rush.

Juncus minutulus
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Juncaceae
Genus: Juncus
Species:
J. minutulus
Binomial name
Juncus minutulus
(Albert & Jahand.) Prain

Description

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An annual, resembling and easily confused with a tiny Juncus bufonius with all parts smaller and with flowers rarely opening (cleistogamous): fruit capsule 2.5-3.0mm, stamens usually (2)3 instead of 6, anthers 1/4-1/3 x filaments (not 1/3-1 x), tepals usually shorter than 4mm, inner tepals acute (not long-tapering), 0-1(2) stem leaves, 1–3cm long.[2]

J. bufonius also has cleistogamous forms that can very much resemble this in these features therefore all features should be examined carefully (such as inner tepal tip shape).[3][4]

Range

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Europe & North Asia, possibly cosmopolitan but reliable records are limited.[2][5]

Habitat

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Similar to Juncus bufonius with which it may grow.

Turkey: Wet or temporarily wet, usually open soil, 0–1800 m.[6]

Spain: Wet pastures or those in temporarily flooded places, on somewhat saline soils; 0-2900m ("Pastos húmedos o de lugares temporalmente inundados, en suelos algo salinos; 0-2900 m").[4]

Istria: Wet roads, fields, ruderal regions.[7]

Siberia: In wet lowlands, along banks of water reservoirs.[8]

Further reading

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References

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  1. ^ Per Google search, a formal name is unknown
  2. ^ a b Species Plantarum / Flora of the World / Part 8. Juncaceae 3: Juncus subg. Agathryon / compiled by Jan Kirschner
  3. ^ Juncus minutulus - přehlížený nový druh československé květeny, 1976, Josef Holub (in Czech and English)
  4. ^ a b Flora iberica (in Spanish)
  5. ^ Plants of the World Online (with map)
  6. ^ Davis. Flora of Turkey and the East Aegean Islands, vol. 9.
  7. ^ "The flora of Istria: Juncaceae", 2005, Karl-Georg Bernhardt, Mihaela Britvec
  8. ^ Flora of Siberia vol. 4, 2001 (English Translation)