Iris lacustris Nutt.

  • Authority

    Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

  • Family


  • Scientific Name

    Iris lacustris Nutt.

  • Description

    Species Description - Like a smaller form of no. 2 [Iris cristata Aiton]; lvs broadly linear, curved- arching, 4–6 cm at anthesis, later to 18 cm × 5–10 mm; spathe-valves closely sheathing each other, the upper and lower equally spaced; perianth-tube dull yellow, 1–2 cm, dilated upwards, not or scarcely exceeding the spathe-valves and shorter than the sep and pet; fls 5–6 cm wide, the pet emarginate; seeds dark brown, arillate; 2n=42. Gravelly shores and cliffs in calcareous soil around lakes Michigan and Huron; now rare. May.

  • Common Names

    dwarf lake-iris