Bear Mountain Flora (part 2 – Saxifrages)

Leatherleaf Saxifrage (Leptarrhena pyrolifolia)
Leatherleaf Saxifrage (Leptarrhena pyrolifolia)

(second in a multipost series: Bear Mountain Flora part 1)

Several species of saxifrage seem to be quite happy above the treeline. Some species were abundant (and still flowering) in the moist seeps, forming a lush rock garden along with other plants that grew there. Other species were found in drier locations, tucked into small crevices on exposed ridges.

I definitely saw two new-to-me (on Baranof Island, anyway) species, and a third that I am uncertain about.

Red-stem Saxifrage (Saxifraga lyallii) Red-stem Saxifrage (Saxifraga lyallii)
Heart-leaved Saxifrage (Saxifraga nelsoniana) Heart-leaved Saxifrage (Saxifraga nelsoniana)
These two saxifrages (along with Leatherleaf Saxifrage, shown in the main photo for the post) I have seen and photographed previously on Starrigavan Ridge. They favored moist places.

Saxifrage (Saxifraga sp) Saxifrage (Saxifraga sp.) Mystery Saxifrage (Saxifraga sp.)
These photos are of the same plant. I haven’t been able to figure out what species it is, but that could just be a lack of appropriate knowledge on my part. To me it appears intermediate between S. nelsoniana and S. lyallii. The leaves do, anyway. I guess the stem and flowers do not look much different than S. nelsoniana.

Purple Mountain Saxifrage (Saxifraga oppositifolia) Purple Mountain Saxifrage (Saxifraga oppositifolia)
I would be more confident with this identification had I seen any flowers, but they were clearly well past blooming. I have seen this plant before, but that was on Mt. Borah in Idaho. They were not exactly hard to find, so I am guessing they have been previously noted on Baranof Island, though I had not heard about it. I found it mainly in fairly dry areas in the alpine.

Cushion Saxifrage (Saxifraga eschscholtzii) Cushion Saxifrage (Saxifraga eschscholtzii) Cushion Saxifrage (Saxifraga eschscholtzii)
This plant was entirely new to me. When I first noticed it, I had no idea what it was. I only figured it out when I happened to see a line drawing in one of the floras I was looking through that seemed to match. It seems to have a pretty distinctive growth form, at least I have not seen anything quite like it before. I did see some evidence of past blooming, but clearly I missed its blooming time by quite a bit. I only found this growing on the highest portion of the ridge. It seemed to favor cracks and crevices on the east side of the summit ridge.

About matt goff

I am an aspiring naturalist who seeks to learn all that I can about the more-than-human aspects of this place that is my home.
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3 Responses to Bear Mountain Flora (part 2 – Saxifrages)

  1. Pingback: Sitka Nature » Bear Mountain Flora (part 3 - Aster Family)

  2. Pingback: Bear Mountain Flora (part 4 - Other Novelties) | Sitka Nature

  3. тарамаан says:

    i think Mystery Saxifrage (Saxifraga sp.) this is S. punctata

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