Agrimonia rostellata
Beaked agrimony

Key Characteristics

Perennial forb (50-100 cm) of dry to moist forests; leaves pinnately compound with 5-9 leaflets; flowers small, yellow, 5-parted; fruit rounded, not grooved, with ascending hooked bristles.

Status and Rank

  • State Status: T
  • State Rank: S2
  • Global Rank: G5

Occurrences

County NameNumber of OccurrencesYear Last Observed
Barry32006
Berrien11905
Calhoun12008
Cass11905
Hillsdale11900
Kalamazoo22008
Lenawee21950
Van Buren21921
Washtenaw12012
Distribution map for Agrimonia rostellata

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

Occurs in openings within oak-hickory forest, or, less commonly, beech-maple forest.

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

Red oak, white oak, black oak, upland pin oak, mayapple, gooseberry, showy tick-trefoil, and white avens.

Management

Requires the inhibition of spread of exotic species in understory, but also likely requires a natural disturbance regime such as prescribed fire to maintain openings in dry mesic forest.

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 Jul 24, 2017]

References

Survey References

Technical References

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