Trillium nivale
Snow trillium
Image of Trillium nivale

Photo by Charles Peirce 

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Key Characteristics

Small forb (10 cm) of forested floodplains; leaves small (3-4 cm), oval and bluish, with distinct petioles; flowers stalked, small, white with 3 narrow petals (1 cm wide), blooming in early April.

Status and Rank

  • State Status: T
  • State Rank: S2
  • Global Rank: G4

Occurrences

County NameNumber of OccurrencesYear Last Observed
Clinton11984
Ionia62004
Ottawa11900
Shiawassee11994
Distribution map for Trillium nivale

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

Snow trillium is found in southern Lower Michigan floodplains and mesic forests, typically on the first or second levee. It also occur in moist ravines, in rich moist woods and bluffs.

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

Beech, sugar maple, basswood, tulip poplar, white ash, bitternut hickory, wild leek, ginger, cut-leaved toothwort, dutchman's breeches, yellow trout lily, Virginia waterleaf, woodland phlox, common trillium, ginseng, goldenseal, hackberry, pawpaw, blue ash, red ash, Kentucky coffeetree, wahoo, eastern camass, false rue anemone, bluebells, and sessile trillium.

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 Apr 24, 2017]

References

Survey References

Technical References

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