Photo by MNFI Staff
Perennial aquatic emergent of Great Lakes marshes; leaves emergent or floating, round, large (over 60 cm) with a long petiole attached to the center of the blade; flower large, white to yellow.
Status and Rank
- State Status: SC
- State Rank: S2
- Global Rank: G4
|County Name||Number of Occurrences||Year Last Observed|
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.
American lotus is found in marshes, in quiet backwaters and near-shore areas and in large rivers near the Great Lakes.
Specific Habitat Needs
needed in Submergent marsh
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.
Feel free to send questions and comments to Brad Slaughter at email@example.com.
Water-plantain, sedges, spike-rush, northern manna grass, cut grass, smartweed, arrowhead, bur-reed, cat-tail, wild rice, water-milfoil, watercress, great duckweed, water-lily, bulrush, pickerel weed, arrow-arum, and pondweed.
Protect habitat and maintain wetland hydrology and natural cycle of fluctuations in this species marsh habitat. Periodic natural drawdowns due to low water levels may replenish seed bank. Agricultural run-off has negative impacts, thus pollution should be minimized. Invasive species, particularly Phragmites, are also a concern.
General Survey Guidelines
Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgment of the investigator.
- Meander search
Survey Period: From first week of June to fourth week of October
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- Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region, 4th ed. Indiana Academy of Science, Indianapolis. 921pp.
- Voss, E. G. 1985. Michigan Flora. Part II. Dicots (Saururaceae-Cornaceae). Bulletin of the Cranbrook Institute of Science and University of Michigan Herbarium. 724pp.