Where in the World Is Snow Grass? Part 2

Be sure to read part one of Where in the World Is Snow Grass?

We continued the search for my little Arctic grasses in Naujaat (previously known as Repulse Bay), a small hamlet in Nunavut that is located directly on the Arctic Circle.

We discovered our first population of ice grass within hours of landing in the community. The plants were considerably larger than those of Arviat and showed more diversity in the habitats in which they were found.

Composite of images showing plant specimens, some being held by a person.

Habitats around Nujaat where we located ice grass:
• top left: a sandy coastal area within the community
• top right: along a gravel road
• bottom left: completely submerged in a little pool on a rock outcrops (an unusual situation likely caused by excessive rain that occurred just prior to our arrival)
• bottom right: at the base of a late-melting snowbed.
Images: Lynn Gillespie, Samantha Godfrey © Canadian Museum of Nature

But where was snow grass? Candidate specimens of snow grass from Canada are superficially similar to ice grass, and without a microscope, we were stuck relying on our hand lenses and general observations of plant form and habitat.

We found several plants with stems that grew semi-erect rather than sprawling out along the ground—a trait indicative of snow grass. However, the hand lens revealed what seemed to be typical ice-grass florets.

Composite of images showing a person crouching while taking a photo, and plant specimens.

Ice grass plants of Naujaat:
• top left: the smallest plant we collected
• top middle: the largest plant we observed
• right: showing off the incredible root length of one little plant
• bottom left: a mixed population of bright green plants and purplish plants
• bottom middle: close-up of an inflorescence (the flowering part of the plant).
Images: Samantha Godfrey © Canadian Museum of Nature

We also searched frost boils (upwellings of mud) out on the tundra, a habitat more suited to snow grass, but came away empty-handed. With growing doubts about the presence of snow grass in Canada, we left Naujaat for our final destination: the capital of Nunavut.

With only three collecting days in Iqaluit, we had to carefully plan which habitats we wanted to target. On the first day, we found several populations of ice grass in disturbed, wet sandy habitats in and around town. Plants were quite large with dense inflorescences (the flowering part of the plant), with nothing standing out as possible snow grass.

Composite of images showing a person crouching while taking a photo, and plant specimens.

The last collection of ice grass we made in Iqaluit:
• left: photographing the population
• middle: a typical plant from that population
• right: close-up of an inflorescence.
Images: Lynn Gillespie, Samantha Godfrey © Canadian Museum of Nature

The next day, I (reluctantly) wrapped my arms around a researcher I had just met, as we hitched a ride down the Road to Nowhere on the backs of a couple of ATVs. We hiked across hilly tundra, scouring every snowbed and generally wet sandy habitat, but there was neither an ice grass nor snow grass to be found. How could this be?

With time running out, we spent our last day combing the shoreline of the bay just east of Apex, a village near Iqaluit. I was confident we would find more ice grass, at the very least. But as we hiked further and further into the bay, my confidence withered away. Alas, the time had come to head home to Ottawa.

A woman with an exaggerated frown.

Taken after arriving back in Apex, sweaty and with nothing to show for it—this self-portrait is entitled The Saddest Botanist Ever. Image: Samantha Godfrey © Canadian Museum of Nature

What now? Probably a few long nights crying into a microscope trying to tell a grass from a grass. Luckily, I also have several loans from herbaria around the globe that have already begun to arrive. The loan from Svalbard, Norway, where ice grass and snow grass are morphologically distinct, should be especially invaluable.

I’ll be sequencing several DNA regions of these specimens to screen for genetic markers that can be used to separate the two species without a doubt. I’ll then be able to check for those markers in the specimens that I collected on my trip, as well as other North American and Greenlandic material.

Then, just maybe, we’ll finally be able to answer the question “Where in the world is snow grass?”

Pieces of paper on the floor, covered with plant specimens.

Ice-grass collections from our Nunavut trip, pressed and ready to be studied under the microscope. Left to right, the rows of specimens are from Iqaluit, Naujaat and Arviat. Image: Samantha Godfrey © Canadian Museum of Nature

This entry was posted in Arctic, Fieldwork, Plants and Algae, Research and tagged , , , . Bookmark the permalink.

4 Responses to Where in the World Is Snow Grass? Part 2

  1. Pingback: Where in the World Is Snow Grass? Part 1 | Canadian Museum of Nature – Blog

  2. Penny Godfrey says:

    Very interesting article. Samantha has taught us so much that we didn’t even know existed. We now look at grass in general differently. Keep up the great work.

  3. Gary Warren says:

    Very interesting read. Ice grass versus snow grass. Great work Samantha and the team who made this possible. Here in Keremeos BC and Osoyoos there are some pretty amazing Desert Grass and vegetation. Maybe one day your team can come and check out our Canada Desert for similar vegetation. We have no Polar Bears but we do have Rattle snakes and cougars. 🙂

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s