Monarda didyma L.
  • Sp. Pl.

Cite taxon page as 'WFO (2021): Monarda didyma L. Published on the Internet; Accessed on: 17 Oct 2021'

General Information

Plants annual. Stems subglabrous, villous on nodes and at apex along angles, glabrescent. Petiole to 2.5 cm, nearly lacking apically, base slightly dilated; leaf blade ovate-lanceolate, to 10 × 4.5 cm, papery, adaxially villous or glabrescent, abaxially sparsely, impressed glandular, villous on veins, base rounded, margin unequally serrate, apex acuminate. Verticillasters in terminal capitula to 6 cm in diam.; bracts short petiolate, leaflike, margin entire, red, shorter than capitula; bracteoles linear-subulate, ca. 10 × 1.5 mm, long caudate, puberulent, red. Pedicel ca. 1 mm, puberulent. Calyx slightly curved, ca. 10 × 2.5 mm, purple-red when dry, veins pubescent, throat sparsely hirsute; teeth equal, subulate-triangular, ca. 1 mm, apex spinescent. Corolla purple-red, ca. 2.5 cm, puberulent; upper lip straight, slightly recurved outward, margin entire; lower lip spreading, with middle lobe narrower, emarginate. Fl. Jul.

  • Provided by: [A].Flora Of CHina @
    • "Perennial 7–15 dm, often pilose at the nodes; lvs thin, ovate or deltoid-ovate to nearly lanceolate, 7–15 × 2.5–6 cm, acuminate, serrate, broadly acute to commonly rounded at base; petioles 1–4 cm; heads 2–4 cm thick (excluding the cors); bracteal lvs lanceolate, longer than the cals, usually red-tinted; fls inodorous, ornithophilous; cal 10–14 mm, glabrous to minutely puberulent, nearly or quite glabrous in the throat, the lobes 1–2 mm, subulate above a triangular base; cor scarlet to crimson, seldom deep red-purple, 3–4.5 cm, the nearly straight upper lip half as long as the tube; 2n=36. Moist woods and thickets; Me. to Mich., s. to N.J., W.Va., and O., and along the mts. to n. Ga. July–Sept. Hybridizes with no. 3 [Monarda clinopodia L.]."

    • Provided by: [C].New York Botanical Garden
      • Source: [
      • 1
      • ]. 


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

       Information From

      Flora Of CHina @
      'Flora of China @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
      • A Missouri Botanical Garden
      • B CC0 1.0 Universal (CC0 1.0).
      New York Botanical Garden
      Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
      • C Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
      World Flora Online consortium
      World Flora Online Data. 2018.
      • D CC0 1.0 Universal (CC0 1.0).