Geum triflorum
Prairie smoke
Image of Geum triflorum

Photo by Bradford S. Slaughter 

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Key Characteristics

Perennial forb of sandy prairies, savanna, and alvar; leaves pinnately compound and hairy; flowers purple to dark red, borne on tall, mostly leafless shoots; fruit with long silky, rosy plumes.

Status and Rank

  • State Status: T
  • State Rank: S2S3
  • Global Rank: G5

Occurrences

County NameNumber of OccurrencesYear Last Observed
Allegan11932
Chippewa12011
Ionia11992
Kent21992
Lake12014
Mecosta22001
Montcalm42012
Muskegon31995
Newaygo192012
Oceana41995
Distribution map for Geum triflorum

Updated 7/21/2017. Information is summarized from MNFI's database of rare species and community occurrences. Data may not reflect true distribution since much of the state has not been thoroughly surveyed.

Habitat

Found on lower slopes of dry sand prairie and barrens as well as limestone pavement on Drummond Island with seasonally wet soils.

Natural Community Types

Methodology

For each species, lists of natural communities were derived from review of the nearly 6,500 element occurrences in the MNFI database, in addition to herbarium label data for some taxa. In most cases, at least one specimen record exists for each listed natural community. For certain taxa, especially poorly collected or extirpated species of prairie and savanna habitats, natural community lists were derived from inferences from collection sites and habitat preferences in immediately adjacent states (particularly Indiana and Illinois). Natural communities are not listed for those species documented only from altered or ruderal habitats in Michigan, especially for taxa that occur in a variety of habitats outside of the state.

Natural communities are not listed in order of frequency of occurrence, but are rather derived from the full set of natural communities, organized by Ecological Group. In many cases, the general habitat descriptions should provide greater clarity and direction to the surveyor. In future versions of the Rare Species Explorer, we hope to incorporate natural community fidelity ranks for each taxon.

Associated Plants

Lance-leaved coreopsis, prairie alum-root, prickly pear, downy phlox, hairy beard-tongue, big bluestem, little bluestem, Pennsylvania, tower mustard, whorled milkweed, Ohio horse mint, old field balsam, hairy hawkweed, dwarf dandelion, rough blazing star, cylindrical blazing star, blue toadflax, wild lupine, horsemint, racemed milkwort, panic grass, venus looking glass. In alvar, associates may include: stiff sandwort, pussy- toes, Indian paintbrush, flat-stemmed spikerush, ragwort, ground juniper, bee-balm, harebell, wild columbine, shrubby cinquefoil, prairie dropseed, cat's foot, Canadian milk vetch, field chickweed, bastard toad flax, hair grass, and old field goldenrod.

Management

The habitat of this species has been severely degraded and diminished. Conservation and restoration of native prairie remnants is necessary. This species likely requires natural disturbances associated with prairie habitat such as prescribed fire and brush removal. Since this species flowers and fruits in spring, prescribed burns should be limited to mid summer and fall. Local disturbance may favor establishment but persistent or severe disturbances threaten the survival of the species. In alvar habitat, maintenance of hydrology is likely important.

General Survey Guidelines

Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgment of the investigator.

Survey Methods

Page Citation

Michigan Natural Features Inventory. 2007. Rare Species Explorer (Web Application). Available online at http://mnfi.anr.msu.edu/explorer [Accessed Dec 18, 2017]

More Information

See MNFI Species Abstract

References

Survey References

Technical References

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