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Lamiaceae
Pycnanthemum

not marked as a favorite taxon Pycnanthemum torreyi Bentham. Common name: Torrey's Mountain-mint. Phenology: Jun-Oct. Habitat: Dry rocky woodlands, over mafic, ultramafic, or calcareous rocks, dry powerline rights-of-way. Distribution: NH west to IL, south to NC and SC.

Glossary (beta!)

ID notes: See Snyder (1994) for additional notes on the identification of P. torreyi.

Origin/Endemic status: Native

Taxonomy Comments: A tetraploid and hexaploid species (n = 40 and ca. 60). The epithet spelling ‘torrei’ is a correctable error.

Synonymy ⓘ: = C, G, K4, Mo3, NY, Tn, Va, Chambers & Hamer (1992), Grant & Epling (1943); = Koellia leptodon (Gray) Kuntze — S; = n/a — Tat; = Pycnanthemum torrei — Il, NE, Pa, orthographic variant; > Pycnanthemum torrei var. leptodon (Gray) Boomhour — F, orthographic variant; > Pycnanthemum torrei var. torrei — F, orthographic variant; < Pycnanthemum verticillatum (Michx.) Pers. — RAB. Basionym: Pycnanthemum torreyi Benth. 1834

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC (taxonomic split from wetland indicator species)
  • Eastern Mountains and Piedmont: FAC (taxonomic split from wetland indicator species)
  • Great Plains: FACW (taxonomic split from wetland indicator species)
  • Midwest: FAC (taxonomic split from wetland indicator species)
  • Northcentral & Northeast: FAC (taxonomic split from wetland indicator species)

Heliophily ⓘ: 8

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image #1 of Pycnanthemum torreyi© Gary P. Fleming | Original Image ⭷
image #2 of Pycnanthemum torreyi© Bonnie Semmling, some rights reserved (CC BY), uploaded by Bonnie Semmling source CC-BY | Original Image ⭷
image #3 of Pycnanthemum torreyi© Bonnie Semmling, some rights reserved (CC BY), uploaded by Bonnie Semmling source CC-BY | Original Image ⭷
image #4 of Pycnanthemum torreyi© Gary P. Fleming | Original Image ⭷
image #5 of Pycnanthemum torreyi© Gary P. Fleming | Original Image ⭷
image #6 of Pycnanthemum torreyi© Alaina Krakowiak, some rights reserved (CC BY), uploaded by Alaina Krakowiak source CC-BY | Original Image ⭷
image #7 of Pycnanthemum torreyi© Bruce Sorrie | Original Image ⭷
image #8 of Pycnanthemum torreyi© Gary P. Fleming | Original Image ⭷
image #9 of Pycnanthemum torreyi© Bruce Sorrie | Original Image ⭷
image #10 of Pycnanthemum torreyi© Matt Reala, some rights reserved (CC BY-NC), uploaded by Matt Reala source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #11 of Pycnanthemum torreyi© Matt Reala, some rights reserved (CC BY-NC), uploaded by Matt Reala source CC-BY-NC, permission granted to NCBG | Original Image ⭷

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Horticultural Information

No horticultural data found for this taxon.

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