Plants and Animals
Poa alpina Alpine bluegrass
Small sparsely tufted grass (40 cm) of the Upper Peninsula; leaves narrow (2-4 mm); inflorescence pyramidal, twice as tall as wide; lemmas are 3-nerved, have long, fine hairs between the margin and the keel, and lack a tuft of cobwebby hairs at the base.
Status and Rank
State Status: T - Threatened (legally protected)
Global Rank: G5 - Secure
State Rank: S1S2 - Rank is uncertain, ranging from critically imperiled to imperiled
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Alpine bluegrass is found in moist to dry limestone and in basaltic rock crevices and exposed heathlands along Great Lakes shores, particularly on Isle Royale, Keweenaw County, and Drummond Island.
Harebell, yarrow, cat's foot, downy oat grass, shrubby cinquefoil, Richardson's sedge, bulrush sedge, bunchberry, little bluestem, prairie dropseed, Canadian milk vetch, sedges, Indian paintbrush, field chickweed, bastard toad flax, grass, hair grass, prairie smoke, ground juniper, bee-balm, and old field goldenrod.
This species requires protection of the habitat and perpetuation of natural disturbance and hydrological regimes. Plants may not tolerate later stages of succession and likely require management that prevents woody plant encroachment such as prescribed burns or woody plant removal. This species is susceptible to damage from excessive recreational use and foot traffic.
Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgement of the investigator.
Survey Period: From first week of June to fourth week of August
- Dore, W.G. and J. McNeill. 1980. Grasses of Ontario. Agriculture Canada Research Monographs 26: 566pp.
- Gray, A. 1950. Gray's Manual of Botany; eighth ed. Van Nostrand Reinghold, New York. 1632pp.
- Hitchcock, A. S. 1951. Manual of the Grasses of the United States. Second ed. Revised by A. Chase. U.S. Department of Agriculture Miscellaneous Publications 200. 1051pp.
- Scoggan, H.J. 1978. The Flora of Canada. National Museum of Natural Science Publications Botany 4: 1711pp.
- Voss, E. G. 1972. Michigan Flora. Part I. Gymnosperms and Monocots. Bulletin of the Cranbrook Institute of Science and University of Michigan Herbarium. 488pp.