Juncus minutulus

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

Juncus minutulus is a species of rush (Juncaceae) informally¹ referred to as minute rush, dwarf toad rush and annual rush.

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).³⁴

Europe & North Asia, possibly cosmopolitan but reliable records are limited.²⁵

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