Plants and Animals
Graphephorum melicoides Purple false oats
Tufted perennial grass of calcareous wetlands; less than 80 cm tall; leaf sheath open and hairy; inflorescence an open panicle; spikelets 2-4 flowered, 5.0 to 7.0 mm long; lemmas awnless; glumes strongly keeled, broadest above middle; rachilla and callus in floret with long, straight hairs.
Status and Rank
US Status: No Status/Not Listed
State Status: SC - Special Concern (rare or uncertain; not legally protected)
Global Rank: G4G5 - Rank is uncertain, ranging from apparently secure to secure
State Rank: SNR - Not ranked
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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.
Found on borders of cedar swamps, meadows, and fens, and marly and rocky shores and swales. Found in sandy or marly, moist soils, and prefers full or partial sun.
Natural Community Types
- Coastal fen
- Floodplain forest
- Great lakes marsh
- Limestone bedrock lakeshore
- Rich conifer swamp
- Wooded dune and swale complex
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.
Twig-rush (Cladium mariscoides), bastard-toadflax (Comandra umbellata), variegated scouring rush (Equisetum variegatum), dwarf lake iris (Iris lacustris), Baltic rush (Juncus balticus), sweet gale (Myrica gale), beak-rush (Rhynchospora capillacea), white cedar (Thuja occidentalis), and false asphodel (Triantha glutinosa).
This species primarily requires protection of the Great Lakes shoreline habitat and perpetuation of natural disturbance (e.g., winter ice, storms, wind, waves) and periodic fluctuations of Great Lakes water levels. Protect occupied habitat and adjacent habitat to allow for temporal and spatial change in habitat with fluctuation of the Great Lakes. Many of the species found in this community do not tolerate later stages of succession. Protect from development and off-road vehicle activity in occupied habitat.
Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgment of the investigator.
Survey Period: From second week of July to fourth week of September
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