Floating aquatic water-meal of shallow lakes; plants without roots; leaves boat-shaped, tiny (<1mm), the surface covered with tiny raised dots.
Status and Rank
- State Status: T
- State Rank: S1
- Global Rank: G5
|County Name||Number of Occurrences||Year Last Observed|
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.
This tiny aquatic plant is known from a single site in Berrien County, where it was found in a buttonbush swamp. It is likely overlooked due to its small size.
Natural Community Types
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.
No associates have been recorded for Michigan other than buttonbush.
This species is likely to benefit from protection of hydrology. In addition, the only known population should be monitored and status surveys conducted for additional occurrences in southwest Michigan.
General Survey Guidelines
Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgement of the investigator.
- Meander search
Survey Period: From first week of September to fourth week of September
More InformationSee MNFI Species Abstract
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