Juncus minutulus
| Juncus minutulus | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Juncaceae |
| Genus: | Juncus |
| Species: | J. minutulus
|
| Binomial name | |
| Juncus minutulus | |
Juncus minutulus is a species of rush (Juncaceae) informally[1] referred to as minute rush, dwarf toad rush and annual rush.
Description
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
Europe & North Asia, possibly cosmopolitan but reliable records are limited.[2][5]
Habitat
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
- "The Juncus bufonius L. aggregate in western Europe", 1978 (Watsonia 12, 113-128), Cope, T.A. & Stace, C.A.
- "Revision of the Italian material of Juncus sect. Tenageia in the Herbarium Centrale Italicum: confirmations and novelties for Italy", 2022, Lorenzo Lastrucci, Valeria Gambirasio, Lorenzo Lazzaro, Daniele Viciani
- "The Revision of Juncus L. (Juncaceae) Genus in Central Anatolia, Turkey", 2015, Bülent Özbek.
- "The elusive Juncus minutulus: A failure to separate tetra- and hexaploid individuals of the Juncus bufonius complex in a morphometric comparison of cytometrically defined groups", 2011, Federick Rooks, Vlasta Jarolimova, Lenka Záveská Drábková, Jan Kirschner
References
- ^ Per Google search, a formal name is unknown
- ^ a b Species Plantarum / Flora of the World / Part 8. Juncaceae 3: Juncus subg. Agathryon / compiled by Jan Kirschner
- ^ Juncus minutulus - přehlížený nový druh československé květeny, 1976, Josef Holub (in Czech and English)
- ^ a b Flora iberica (in Spanish)
- ^ Plants of the World Online (with map)
- ^ Davis. Flora of Turkey and the East Aegean Islands, vol. 9.
- ^ "The flora of Istria: Juncaceae", 2005, Karl-Georg Bernhardt, Mihaela Britvec
- ^ Flora of Siberia vol. 4, 2001 (English Translation)