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Juncus acutus; Sharp Rush   

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Juncus acutus
Juncus acutus
Sharp Rush
Photographer: Dr. Amadej Trnkoczy

ID: 0000 0000 0218 0884 (2018-02-13)

Copyright © 2018 Dr. Amadej Trnkoczy

  • date of photo  Jun 20, 2010
  • latitude 44.39611   longitude 14.80006     View on Google Maps.
  • location   Slatinica bay, east shore of the island Olib, Kvarner bay (Adriatic Sea, Croatia)
  • notes   Slo.: ostro ločje, ostri loček - Habitat: a few meters from sea shore, partly salt march; sandy calcareous ground; full sun; elevation 1 m (3 feet); average precipitations ~ 900 mm/year, average temperature 12-14 deg C, (sub)Mediterranean phytogeographical region. Substratum: soil among sea shore pebbles. Comment: Juncus acutus is a tall (up to 1.8 m), robust plant quite easy to recognize in spite of the fact that genus Juncus includes many, many species. It is a warmth loving Mediterranean plant growing in all countries around Mediterranean Sea (Ref.2). In Slovenia it is quite rare and restricted exclusively to Adriatic Sea shore (Ref.: 5). The plant can be recognized by its notable size, densely tufted habit and firm, basal, sharply pointed and longer than flower stems leaves. Reddish-brown flowers are interesting when observed from close (hand lens). The pictures show the plant in seeds (capsules). A quite remarkable member of Juncus genus! Ref.: (1) A. Martinči et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnična Založba Slovenije (2007), p 788. (2) I. Schӧnfelder, P. Schӧnfelder, Kosmos Atlas Mittelmeer- und Kanarenflora, Kosmos, (2002), p 272. (3) M. Blamey, C. Grey-Wilson, Wild Flowers of the Mediterranean, A & C Black, London (2005), p 529. (4) R. Domac, Flora Hrvatske (Flora of Croatia) (in Croatian), Školska Knjiga, Zagreb (1994), p 409. (5) N. Jogan (ed.), Gradivo za Atlas flore Slovenije (Materials for the Atlas of Flora of Slovenia), CKSF (2001), p 208.
  • camera   Canon G11, 6.1-30mm/f2.8-4.5
  • contributor's ID #  Bot_431/2010_IMG0870
  • photo category: Plant - annual/perennial

  • common names   Sharp Rush (photographer)
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  • The photographer's identification Juncus acutus has not been reviewed. Click here to review or comment on the identification.

    Using this photo   The thumbnail photo (128x192 pixels) on this page may be freely used for personal or academic purposes without prior permission under the Fair Use provisions of US copyright law as long as the photo is clearly credited with © 2018 Dr. Amadej Trnkoczy. For other uses, or if you have questions, contact Dr. Amadej Trnkoczy amadej.trnkoczy[AT] (Replace the [AT] with the @ symbol before sending an email.)


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