it keeps the plants safe because some animals don't like the hairy texture
The roots of plants in arctic soil are shallow, but I am not sure why. Sorry!
Small, strong plants such as lichens and mosses can grow there.
for the same reason you might be surprised to find a fly in an ice cube. Coal is made from compressed plant matter and how exactly did plants grow on the surface of an ocean. (as there is no land mass beneath the arctic)
Arctic and antarctic regions
Not very many plants grow in the arctic lowlands. There are no trees or anything with flowers. There are mainly shrubs and lichen.
Almost all plants growing in the soil have root hairs
Small, strong plants such as lichens and mosses can grow there.
I take it you mean the Arctic Tundra. There are many flowering plants like purple saxifrage, mountain avens, wild crocus, arctic poppies, buttercups, cinquefoil, moss campion, campanulas, arctic azaleas and arctic lupine Other plants that grow there are mosses, grasses, herbs, lichens and small shrubs like the dwarf willow and arctic willow.
In addition to mosses and other types of ground cover, there are several plants that thrive in the Arctic. Much of it is used by caribou and other native creatures as a food source. There are even some flowers that grow near the rocks.
The soil is permafrost (permanently frozen layer of ground) in the arctic. During the brief summers it thaws out just enough for plants and microorganisms to grow.
They are just tiny roots that grow from other roots and look a bit like hair.
It will go awayOr it might grow back faster!