Dryas drummondii

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cohan
cohan's picture
Title: Guest
Joined: 2011-02-03

Over on the other side of the gravel road to the glacier, the richer plant communities between the moraines.. I'm not sure what Dryas this is in seed- likely a good part of it is D drummondii, but either or both of the other species could be in this community..

west central alberta, canada; just under 1000m; record temps:min -45C/-49F;max 34C/93F; http://picasaweb.google.ca/cactuscactus  http://urbanehillbillycanada.blogspot.com/

Hoy
Hoy's picture
Title: Member
Joined: 2009-12-15
Lori wrote:

It depends what you mean by fresh maybe... The seeds I started were collected in summer but not started until January, no different than if one got them in that year's  seedex.

Edit:  I sent wild-collected seed to the NARGS and SRGC seedexes (and likely some other people did too), so there's a chance to try it again, for those who are interested.

I wasn't sure myself what i meant - probably seed from this season ;) I have already made a note in the SRGC catalogue!!

Here the common (sometimes called mountain) birch (Betula pubescens ssp. czerepanovii  picture) is the first tree species to establish in newly exposed  areas where the glaciers melt below treeline - often even before forbs and grasses.

Can heavy metals or toxic minerals play a role in the regrowth pattern you observe? Cold air flows etc are important of course but locally high consentrations of minerals can exclude many plants from establishing.

Trond Rogaland, Norway - with cool, often rainy summers  (29C max) and mild, often rainy winters (180 cm/year)!

Lori S.
Title: Moderator
Joined: 2009-10-27
Hoy wrote:

Can heavy metals or toxic minerals play a role in the regrowth pattern you observe? Cold air flows etc are important of course but locally high consentrations of minerals can exclude many plants from establishing.

Very unlikely in this area.

Lori Calgary, Alberta, Canada - Zone 3 -30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm

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