Photo by Kitty Kohout
Medium-sized forb (80 cm) of moist prairies; leaves opposite, lanceolate with ciliate margins; open tubular flowers blue with large erect lobes in between folds in the floral tube; borne in terminal clusters.
Status and Rank
- State Status: X
- State Rank: SX
- Global Rank: G5
|County Name||Number of Occurrences||Year Last Observed|
Updated 5/15/2018. 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.
No habitat data are known for Michigan's sole collection of this species. Elsewhere in its range, this species occurs in a variety of moist prairie, thicket, and woodland habitats, usually on sandy soils. This species was last documented in Michigan in 1867.
Natural Community Types
- Oak barrens
- Wet-mesic sand prairie
- Mesic sand prairie
- Lakeplain oak openings
- Lakeplain wet-mesic prairie
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.
In the Chicago region this gentian occurs with prairie species such as little bluestem, false-indigo, tall coreopsis, rattlesnake-master, Indian grass, and Culver's root, as well as black and white oak.
If found to still be extant in the state, this species would likely require prescribed fire and other management that promotes and maintains prairie and savanna habitat.
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 September to fourth week of October
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- Gray, A. 1950. Gray's Manual of Botany; eighth ed. Van Nostrand Reinghold, New York. 1632pp.
- Holmgren, N.H. 1998. Illustrated Companion to Gleason and Cronquist's Manual. Illustrations of the vascular plants of Northeastern United States and adjacent Canada. New York Botanical Garden, Bronx. 937pp.
- Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region, 4th ed. Indiana Academy of Science, Indianapolis. 921pp.
- Voss, E.G. 1996. Michigan Flora. Part III. Dicots (Pyrolaceae-Compositae). Bulletin of the Cranbrook Institute of Science and University of Michigan Herbarium. 622pp.