Personally, I tend to assume that without light-pollution from the sun or moon - AND the different effect of "globed atmosphere over flat earth" as opposed to "globed atmosphere around round earth", I mean, it's probably like a magnifying glass or something? - the stars would have been bright enough to allow the growth and survival of all plants that, in the real worlds, survive in a (snowless) central European winter. No clue whether that's feasible, but in this context, I'm perfectly willing to hand-wave. There are gods and monsters. And, come to think of it, a flat, sunless earth. Things need to be consistent - not necessarily realistic!
Of course, things would have been different in Valinor, where the bright light of the Trees would indeed have fostered a very different flora, and the resilient darkness-and-cold-bearing plants would either not be present at all, or far away from Elven settlements in the shadows of the Pelóri. So Valinor might starve after the Darkening, but then, there's Yavanna to take care of that. So, yep, hand-waving away!
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timeasmymeasure
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Date: 2014-05-09 10:24 am (UTC)Of course, things would have been different in Valinor, where the bright light of the Trees would indeed have fostered a very different flora, and the resilient darkness-and-cold-bearing plants would either not be present at all, or far away from Elven settlements in the shadows of the Pelóri. So Valinor might starve after the Darkening, but then, there's Yavanna to take care of that. So, yep, hand-waving away!