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Orobanche laserpitii-sileris
Laserpitium Broomrape
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Photographer: Dr. Amadej Trnkoczy
ID: 0000 0000 0716 3587 (2016-07-29)Copyright © 2016 Dr. Amadej Trnkoczy
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INFORMATION PROVIDED WITH THE PHOTO
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date of photo Jul 18, 2016
latitude 46.27354 longitude 13.46208
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location
Breginjski kot, southwest slopes of Mt. Kobariški Stol ridge, about 100 m before the last switchback (upwards) of the south road from village Sedlo to Planina Božca, East Julian Alps (Posočje, Slovenia)notes Slo.: jelenovčev pojalnik - Habitat: grassy and herbaceous, steep mountain slope, south-southwest aspect; roadside of a dirt road/track; calcareous, stony and gravely ground; full sun, warm and dry place; elevation 1.285 m (4.200 feet); average precipitations ~ 3.000 mm/year, average temperature 3-5 deg C, alpine phytogeographical region. Substratum: soil. Comment: Orobanche laserpitii-sileris is a beautiful, very rare and highly endangered parasitic plant. Its distribution is limited to scattered montane and subalpine places of central and south Alps and of mountains in western part of Balkan Peninsula (southward to Macedonia). In addition to these, it can be found also in a single, small region in Pyrenees. The plant's eye-catching habitus supports its status of a rare plant in contrast to many small, pale colored, inconspicuous 'rare' species, which are actually more overlooked than truly rare. Orobanche laserpitii-sileris is a very stout, sometimes up to 80 cm tall, conspicuously reddish-yellowish colored plant, visually sharply contrasting to freshly blue-green leaves of its host laserwort (Laserpitium siler), which is also a conspicuous, large and easy to identify plant (even based on its leaves only). Southwest slops of Mt. Kobariški Stol ridge seem to be an ideal habitat for this species of broomrapes. Extensive, sunny, warm and dry mountain slopes of herbaceous vegetation on calcareous, stony and gravelly ground are heavily overgrown with Laserpitium siler. On some places this species builds stands almost in monoculture. Hence it is sometimes considered as a kind of treat to biodiversity of these mountain slopes, although it is not an aggressive introduced plant. Nevertheless, the abundance of the host makes the probability that the seeds of Orobanche laserpitii-sileris come in immediate, direct contact with roots of the host relatively high. Namely this is a requirement that the seeds of broomrapes germinate at all. Description of the find: plant about 30 cm tall; corolla (three measured) 28, 27, 29 mm long; the bracts are as long or slightly shorter than corolla; no bracteoles found; the calyx consisting of two bifid, slightly unequally bidentate, oval halves, which are fused to about 50% of their length, their total length is about 65% of corolla length; the stamens are inserted about 5 mm above the base of the corolla tube; its base is honey-yellow on inner side; stamens are hairy up to about 2/3 of their length and sparsely glandular-pubescent below the anthers; the style is glandular-pubescent in the upper part below the stigma; ovary is glabrous and yellow at the base. Ref.: (1) C.A.J. Kreutz, Orobanche, The European broomrape species, Vol.1., Central and Northern Europe, Stichting Natuurpublicaties Limburg, Maastrich (1995), p 108. (2) M.A. Fischer, W. Adler, K. Oswald, Exkursionsflora für Österreich, Liechtenstein und Südtirol, LO Landesmuseen, Linz, Austria (2005), p 761. (3) A. Martinči et all., Mala Flora Slovenije (Flora of Slovenia - Key) (in Slovenian), Tehnična Založba Slovenije (2007), p xx. (4) D. Aeschimann, K. Lauber, D.M. Moser, J.P. Theurillat, Flora Alpina, Vol. 2., Haupt (2004), p 292. (5) K. Lauber and G. Wagner, Flora Helvetica, 5. Auflage, Haupt (2012), p 918.camera Nikon D700/Nikkor Micro 105mm/f2.8
contributor's ID # Bot_989/2016_DSC3801 photo category: Plant - annual/perennial
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MORE INFORMATION ABOUT THIS PLANT
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Laserpitium Broomrape (photographer)
View all photos in CalPhotos of Orobanche laserpitii-sileris Check Google Images for Orobanche laserpitii-sileris |
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The photographer's identification Orobanche laserpitii-sileris has not been reviewed. Click here to review or comment on the identification. |
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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 © 2016 Dr. Amadej Trnkoczy.
For other uses, or if you have questions, contact Dr. Amadej Trnkoczy amadej.trnkoczy[AT]siol.net. (Replace the [AT] with the @ symbol before sending an email.) |
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