Rare orchid blooms late in southeast Michigan

September 20, 2026

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, a threatened native orchid, was documented in flower on 2026-09-19 in southeast Michigan. This fall bloom coincides with above-normal September temperatures that averaged 2.9°F above the 1991-2020 normal, with warm conditions persisting since early September.¹ Warm autumns may shift flowering phenology for this orchid species.¹

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This post was last corrected on October 1, 2026.

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