Dichanthelium microcarpon
Small-fruited panic-grass

Key Characteristics

Delicate clumped grass of swamps; stems slender, with conspicuously bearded nodes, 4-7 cauline leaves, and a ligule (1 mm or less) of hairs; spikelets small (1.5 mm) and glabrous, borne in open spreading panicles.

Status and Rank

  • State Status: SC
  • State Rank: SX
  • Global Rank: GNR

Occurrences

County NameNumber of OccurrencesYear Last Observed
Berrien11913
Calhoun11984
Eaton11923
Montcalm11984
Oakland11986
St. Joseph11985
Distribution map for Dichanthelium microcarpon

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

Very few data are available for this species, which is known from moist woods and thickets in or near forested and non-forested wetlands.

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.

Feel free to send questions and comments to Brad Slaughter at slaugh14@msu.edu.

Associated Plants

Tamarack, red maple, marsh fern, bracken fern, dogbane, panic grass, poverty grass, black huckleberry, blueberry, rattlesnake weed, and tick-trefoil.

Management

A status survey is the primary need for this species, which is known from several historical records. If found, it would likely require the protection of hydrology.

General Survey Guidelines

Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgement 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 Mar 28, 2017]

References

Survey References

Technical References