Trillium recurvatum
Prairie trillium
Image of Trillium recurvatum

Photo by Susan R. Crispin 

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Key Characteristics

Medium-sized forb (40 cm) of rich woods; leaves broadly oval (3-6 cm wide) with distinct petioles, strongly mottled; flowers sessile, dark red to purple.

Status and Rank

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

Occurrences

County NameNumber of OccurrencesYear Last Observed
Berrien402015
Cass52007
Wayne11905
Distribution map for Trillium recurvatum

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

Prairie trillium is found in southwestern Lower Michigan floodplains and mesic forests, especially moist ravines, rich moist woods and bluffs and is most frequent on limestone derived 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

Silver maple, green ash, red maple, black walnut, hackberry, black maple, sugar maple, beech, Ohio buckeye, box elder, black ash, black willow, cottonwood, swamp white oak, sycamore, spice bush, redbud, paw paw, Kentucky coffee tree, red mulberry, wahoo, Virginia blue-bells, common trillium, red trillium, stinging nettle, poison ivy, moneywort, Canada moonseed, wild ginger, skunk cabbage, honewort, kidney-leaved buttercup, false mermaid, rough bedstraw, mayapple, blue eyed Mary, and Canada goldenrod.

Management

Conserve hydrology of river system and corresponding cyclical floodplain regime. Maintain healthy intact, mature floodplain forests and minimize forest fragmentation. Monitor and control invasive species, particularly garlic mustard and dame's rocket. When possible, leave large tracts of unharvested forests and allow natural processes to operate unhindered.

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 May 24, 2017]

More Information

See MNFI Species Abstract

References

Survey References

Technical References

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