CalPhotos    Photo Database

Saxifraga hostii ssp. hostii; Host's Saxifrage   

Contributors      Log In  

click photo for larger file
Saxifraga hostii ssp. hostii
Saxifraga hostii ssp. hostii
Host's Saxifrage
Photographer: Dr. Amadej Trnkoczy

ID: 0000 0000 0217 1469 (2017-02-12)

Copyright © 2017 Dr. Amadej Trnkoczy

  • date of photo  Jul 4, 2016
  • latitude 46.21123   longitude 13.55172     View on Google Maps.
  • location   Next to the dirt road from village Livek to Mt. Matajur, near Planina Matajur, East Julian Pre-Alps (Posočje, Slovenia)
  • notes   Slo.: Hostov kreč, Hostov kamnokreč - Habitat: stony roadside of a dirt road; calcareous, skeletal, stony ground, sunny and dry place, moderately inclined mountain slope, south aspect; exposed to direct rain; elevation 1.300 m (4.260 feet); average precipitations ~ 3.000 mm/year, average temperature 3-5 deg C, pre-alpine phytogeographical region. Substratum: soil among rocks and in rock crevices. Comment: Saxifraga hostii ssp. hostii is an endemic member of large genus Saxifraga containing numerous marvelous, mostly alpine pants. It is actually not a true high mountains species, since it can be found fully developed and in full bloom in Trenta valley below 500 m elevation. But it also climbs to alpine elevations well above 2.000 m. Habitus, leaves and inflorescence are much similar better known Saxifraga crustata, but it is larger in all its parts. The tallest plants can be more than 50 cm high and hence belong to the tallest members of this genus in the Alps. It can be found in northeast Italy, Slovenia and south Austria. Actually it is a sub-endemic plant because one can find it also in some places of Dinaric Mountains (Ref.1.). Slightly different subspecies Saxifraga hostii ssp. rhaetica grows in a limited region of south Alps in Italy. Flowers of Saxifraga hostii ssp. hostii are generally white, however sometimes the petals are decorated with beautiful, tiny red dots as shown in my picture. Such dots appear also on other species of this genus. Saxifraga hostii ssp hostii is a perennial plant. During the winter, if not covered by snow, its leaves get beautifully colored. Ref.: (1) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 1., Haupt (2004), p 700. (2) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora für Österreich, Liechtenstein und Südtirol, LO Landesmuseen, Linz, Austria (2005), p 392. (3) H. Sauerbier, W. Langer, Alpenpflanzen: Endemiten von Nizza bis Wien (II), IHW-Verlag (2000), p 75. (4) A. Martinči et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnična Založba Slovenije (2007), p 242.
  • camera   Canon G11, 6.1-30mm/f2.8-4.5
  • contributor's ID #  Bot_983/2016_IMG0705
  • photo category: Plant - annual/perennial

  • common names   Host's Saxifrage (photographer)
  • View all photos in CalPhotos of Saxifraga hostii ssp. hostii
  • Check Google Images for Saxifraga hostii ssp. hostii

  • The photographer's identification Saxifraga hostii ssp. hostii 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 © 2017 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.)


    Copyright © 1995-2024 UC Regents. All rights reserved.

    CalPhotos is a project of BNHM     University of California, Berkeley