Tanacetum huronense
Lake Huron tansy
Image of Tanacetum huronense

Photo by MNFI Staff 

More Images

Key Characteristics

Perennial forb of northern dunes; arising from long, slender rhizomes, producing clumps of dissected, hairy, bipinnately compound leaves and terminal, long-stalked, yellow flower heads (13-19 mm broad) with obscure, short ray florets.

Status and Rank

  • State Status: SC
  • State Rank: S3
  • Global Rank: G5T4T5

Occurrences

County NameNumber of OccurrencesYear Last Observed
Alger42006
Alpena11912
Antrim52004
Charlevoix242015
Cheboygan71999
Chippewa122008
Delta32006
Emmet132012
Grand Traverse21989
Leelanau42000
Luce62009
Mackinac282006
Marquette11918
Presque Isle82005
Schoolcraft172007
Distribution map for Tanacetum huronense

Updated 1/31/2017. 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

Lake Huron tansy occur along the Great Lakes shorelines in open dunes and along shores and beaches in sandy to rocky areas.

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

Dune willows, dune grass, sea rocket, rock cress, sand cherry, wormwood, and Pitcher's thistle.

Management

Protect integrity of dune habitats and natural dune processes that perpetuates habitat for this species.

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 May 28, 2017]

More Information

See MNFI Species Abstract

References

Survey References

Technical References

Facebook link