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Author Topic: Southern Limestone barrens in Newfoundland  (Read 949 times)
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Todd Boland
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« on: June 19, 2011, 05:29:02 PM »

Just got back from 4 days of meetings on the Port-au-Port peninsula of western Newfoundland.  We were specifically looking at the population of Hedysarum boreale...it was just listed as a Species at Risk in Newfoundland.  The plants are restricted to this little outlier of our limestone barrens..there are about 600 plants.  Here are some scenes from this special part of Newfoundland.


* Cape St George.jpg (65.08 KB, 650x432 - viewed 45 times.)

* Cape St George1.jpg (59.48 KB, 650x432 - viewed 44 times.)
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Todd Boland
St. John's, Newfoundland, Canada
Zone 5b
1800 mm precipitation per year
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« Reply #1 on: June 19, 2011, 05:31:28 PM »

Mid-June and there are plenty of alpines open...Anemone parviflora here have quite blue reverse on the petals and some have fine speckling I've never seen on more northern plants.  Also Arnica lonchophylla were just starting.


* Anemone parviflora 1.jpg (34.72 KB, 650x598 - viewed 33 times.)

* Anemone parviflora.jpg (54.43 KB, 650x694 - viewed 31 times.)

* Arnica lonchophylla.jpg (67.36 KB, 650x724 - viewed 28 times.)
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Todd Boland
St. John's, Newfoundland, Canada
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« Reply #2 on: June 19, 2011, 05:32:49 PM »

However, the best plants were the thousands of Cypripedium parviflorum!  They even grew in pure limestone gravel.


* Cypripedium parviflorum.jpg (71.05 KB, 650x432 - viewed 46 times.)

* Cypripedium parviflorum1.jpg (152.82 KB, 650x682 - viewed 38 times.)

* Cypripedium parviflorum2.jpg (143.98 KB, 650x979 - viewed 35 times.)
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Todd Boland
St. John's, Newfoundland, Canada
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« Reply #3 on: June 19, 2011, 05:39:05 PM »

Dryas integrifolia, Hedysarum boreale, maianthemum stellatum var. crassum, Minuartia rubella


* Dryas integrifolia.jpg (180.43 KB, 650x866 - viewed 34 times.)

* Dryas integrifolia 1.jpg (99.62 KB, 650x488 - viewed 31 times.)

* Hedysarum boreale.jpg (116.1 KB, 650x683 - viewed 32 times.)

* Maianthemum stellatum crassum.jpg (68.33 KB, 650x556 - viewed 34 times.)

* Minuartia rubella.jpg (134.66 KB, 650x545 - viewed 32 times.)
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Todd Boland
St. John's, Newfoundland, Canada
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« Reply #4 on: June 19, 2011, 05:44:01 PM »

Oxytropis campestris var. terrae-novae, Physaria arctica, Pinguicula vulgaris


* Oxytropis campestris terrae novae.jpg (82.96 KB, 650x613 - viewed 30 times.)

* Physaria arctica.jpg (123.91 KB, 650x432 - viewed 34 times.)

* Physaria arctica 1.jpg (52.69 KB, 650x639 - viewed 29 times.)

* Pinguicula vulgaris.jpg (122.5 KB, 650x703 - viewed 33 times.)
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Todd Boland
St. John's, Newfoundland, Canada
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« Reply #5 on: June 19, 2011, 05:49:35 PM »

Potentilla nivea, Potentilla taebermontana, Primula laurentiana and an unknown Primula.  This last one is often called P. mistassinica alba but our population of this mysterious primrose is always white with 2-3 flowers (we do have typical mistassinica as well).  Chatting with other botanists we are beginning to believe this species was never described!


* Potentilla nivea.jpg (112.56 KB, 650x718 - viewed 32 times.)

* Potentilla taebermontana.jpg (130.88 KB, 650x513 - viewed 32 times.)

* Primula laurentiana.jpg (102.82 KB, 650x752 - viewed 36 times.)

* Primula mistassinica alba.jpg (53.3 KB, 650x712 - viewed 33 times.)
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Todd Boland
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« Reply #6 on: June 19, 2011, 05:55:57 PM »

Only three species of arctic willow grow this far south...S. glauca, S. uva-ursi and S. vestita.


* Salix glauca.jpg (103.38 KB, 650x520 - viewed 36 times.)

* Salix uva ursi.jpg (106.06 KB, 650x490 - viewed 36 times.)

* Salix vestita.jpg (91.15 KB, 650x432 - viewed 34 times.)
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Todd Boland
St. John's, Newfoundland, Canada
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« Reply #7 on: June 19, 2011, 05:58:53 PM »

I found the mother of all Silene acaulis...see the toonie as a size comparison.  Also found a huge alba form.  And I'll end with Saxifraga paniculata var. labradorica and Viola labradorica....I think I see a Rock Garden Quarterly article in the making!


* Silene acaulis.jpg (134.7 KB, 650x432 - viewed 37 times.)

* Silene acaulis 1.jpg (124.65 KB, 650x432 - viewed 29 times.)

* Silene acaulis alba.jpg (120.25 KB, 650x398 - viewed 31 times.)

* Silene acaulis alba 1.jpg (124.71 KB, 650x432 - viewed 25 times.)

* Saxifraga paniculata.jpg (127.77 KB, 650x524 - viewed 33 times.)

* Viola labradorica.jpg (97.92 KB, 650x665 - viewed 34 times.)
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Todd Boland
St. John's, Newfoundland, Canada
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Lori S.
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« Reply #8 on: June 19, 2011, 07:14:17 PM »

A great insight into that area for us, Todd!  It looks like a beautifully rugged and windswept area... (yet it must have been calm, as your photos are so clear?)  Funny how many of the plants are common to the Rockies, and that Hedysarum boreale is common and widespread here yet at risk there.   Is that due to natural reasons (e.g. small remnant population remaining from post-glaciation)?
Love the cyps... isn't it wonderful to come across these colonies at just the peak of bloom?
I am struck by Minuartia rubella - very dainty yet with flower power!
Really nice to see the willows... (must try to memorize the features of S. glauca and S. vestita for hikes later on).

Re. the primula, this could be your chance to get your name on a species!   Shocked  Smiley

Beautiful photos!
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Lori
Calgary, Alberta, Canada - Zone 3
-30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm
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« Reply #9 on: June 20, 2011, 01:00:18 AM »

Looks like an amazing place! Those cliffs certainly fit with our view of Newfoundland--everything past the cliffs is a bit fuzzy for me!
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west central alberta, canada; just under 1000m; record temps:min -45C/-49F;max 34C/93F; http://picasaweb.google.ca/cactuscactus  http://urbanehillbillycanada.blogspot.com/
RickR
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« Reply #10 on: June 20, 2011, 01:07:23 AM »

Thanks for the great photos, Todd!  I can imagine how windswept a place like that must be.  I'll bet it was that pleasant, even at this time of year.  But, the plant life sure makes it all worth it!

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Rick Rodich    zone 4a.    Annual precipitation ~24 inches
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« Reply #11 on: June 20, 2011, 05:10:35 PM »

At least this part of Newfoundland looks very different from the eastern part you have showed before, Todd. And what a flora! Strange what differences limestone makes for the assortment of plants.
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Trond
Rogaland, Norway - with cool, often rainy summers  (29C max) and mild, often rainy winters (180 cm/year)!
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