Bear Grass

The Bear Grass is very abundant this year at Glacier National Park…

Bear Grass looks like a grass, but really belongs to the lily family. It is about 4.5 feet tall. Its olive-colored, grass-like leaves grow from the base of the plant and are tough and wiry. The outside leaves clasp around the stem. The leaves have toothed margins, and grow about 35 inches long, getting shorter as they near the flowers, looking very much like a fan.

The flowers of bear grass grow on a stalk that can be 6 feet tall with many small flowers. Each flower is creamy white, and saucer shaped, and has a sweet

aroma. The lowest flowers bloom first, creating a tight knot of buds at the top. The entire flower looks a little like fluffy, upside down ice cream cone. Bear grass tends to flower in 5 to 7 year cycles. After the fruit sets, the plant dies. It reproduces by seed, and by sending out offshoots from its rhizomes.

Bear grass is found in open forests and meadows at sub alpine and low alpine elevations in the western United States. It is commonly found under alpine larch (Larix lyallii) and whitebark pine (Pinus albicaulis) stands on cold, rocky sites at upper timberlines.

Bear grass is a fire-resistant species that is the first plant to grow after a fire. Bear grass, and many other native plants, need periodic burns to produce strong, new growth. After a fire bear grass sprouts from its rhizomes which lie just under the surface. Light fires of short duration are best. Intense fires which linger in the same place for a long time will kill the rhizomes under the ground, and prevent the bea rgrass from growing back.

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