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.
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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© Gary P. Fleming | Original Image ⭷
© Gary P. Fleming | Original Image ⭷
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© Gary P. Fleming | Original Image ⭷
© Bruce Sorrie | Original Image ⭷
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Horticultural Information
No horticultural data found for this taxon.