Image ID: 8026
Image by: Parkins, Grant Morrow
Image Collection: NCBG Digital Library
PLANT INDEX
ID_PLANT: PYVE
SCIENTIFIC NAME: Pycnanthemum verticillatum
Include in WOTAS: 0
Publish to Web: 1
Last Modified: 2018-09-18
GENUS INDEX
GENUS CODE: PYCNA GENUS SCIENTIFIC:Pycnanthemum GENUS AUTHORITY: Michx. GENUS COMMON: Mountainmint GENUS SUMMARY: A genus of 20-25 species, herbs, of temperate North America. Pycnanthemum remains a complicated and difficult group, with speciation apparently having proceeded by allopolyploidy, autoploidy, and aneuploidy. Numerous aberrant forms and (probably) sterile hybrids complicate identification and understanding. GENUS IDENTIFICATION: GENUS REFERENCES: Chambers (1993); Grant & Epling (1943)=Z; Chambers & Hamer (1992)=Y; Harley et al. in Kadereit (2004).
FAMILY INDEX
FAMILY CODE: LAMIAC FAMILY SCIENTIFIC:Lamiaceae FAMILY AUTHORITY: Lindley 1836 or LABIATAE A.L. de Jussieu 1789 FAMILY COMMON: Mint Family FAMILY SUMMARY: A family of about 230-250 genera and 6700-7170 species, herbs, shrubs, vines, and trees, cosmopolitan. The placement in the Lamiaceae of several genera traditionally placed in Verbenaceae (e.g. Clerodendrum) is strongly supported by several lines of evidence. FAMILY REFERENCE: Harley et al. in Kadereit (2004).
FRUITING PERIOD: DISTRIBUTION
HABITAT TYPE:
NATIVE RANGE: eastern North America HORTICULTURAL
Plant Sale Text: Whorled mountain-mint is a vigorous clumping perennial whose highly aromatic leaves look like they have been lightly frosted on top. In mid-late summer, the stems get topped by white flowers speckled with pink and purple that attract a wide variety of bees, butterflies and wasps. This plant can spread by rhizomes so either give it ample space in a meadow or plan to prune the roots by shovel each year to limit its space in a more formal garden.
Bloom Table Text:
NCBG Location:
Cultural Notes:
SOIL MOISTURE:
Dry, Average
LIGHT EXPOSURE:
Sun, Part Shade
MINIMUM HARDINESS ZONE: 4
MAXIMUM HARDINESS ZONE: 8
GERMINATION CODE:
WILDLIFE VALUE:
Bee Friendly, Butterfly Friendly
DEER RESISTANCE:
This information is derived from the U.S. Army Corps of Engineers 2016 National Wetland Plant List, Version 3.3 (Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings. Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X). Regions: AGCP-Atlantic and Gulf Coastal Plain, AK-Alaska, AW-Arid West, CB-Caribbean, EMP-Eastern Mountains and Piedmont, GP-Great Plains, HI-Hawaii, MW-Midwest, NCNE-Northcentral and Northeast, WMCV-Western Mountains, Valleys & Coast
WEAKLEY FLORA
SCIENTIFIC NAME: Pycnanthemum torreyi
COMMON NAME: Torrey's Mountain-mint
SYNONYMY: [= C, G, Mo, Va, Y, Z; < P. verticillatum - RAB; = P. torrei - K, Pa, orthographic variant; > P. torrei var. torrei - F; > P. torrei var. leptodon (Gray) Boomhour - F; = Koellia leptodon (Gray) Small - S]
PHENOLOGY: Jun-Oct.
HABITAT: Dry rocky woodlands, over mafic, ultramafic, or calcareous rocks, dry powerline rights-of-way.
COMMENTS: NH west to IL, south to NC (and SC?). A tetraploid and hexaploid species (n = 40 and ca. 60). The epithet spelling ‘torrei’ is a correctable error.
RANGE MAP: Pycnanthemum torreyi.png
Key to Map SymbolsABOUT FAMILY (Weakley Flora) Lamiaceae Lindley 1836 or LABIATAE A.L. de Jussieu 1789 (Mint Family) SUMMARY: A family of about 230-250 genera and 6700-7170 species, herbs, shrubs, vines, and trees, cosmopolitan. The placement in the Lamiaceae of several genera traditionally placed in Verbenaceae (e.g. Clerodendrum) is strongly supported by several lines of evidence. REFERENCE: Harley et al. in Kadereit (2004).ABOUT GENUS (Weakley Flora) Pycnanthemum Michx. (Mountainmint) SUMMARY: A genus of 20-25 species, herbs, of temperate North America. Pycnanthemum remains a complicated and difficult group, with speciation apparently having proceeded by allopolyploidy, autoploidy, and aneuploidy. Numerous aberrant forms and (probably) sterile hybrids complicate identification and understanding. REFERENCE: Chambers (1993); Grant & Epling (1943)=Z; Chambers & Hamer (1992)=Y; Harley et al. in Kadereit (2004).
HERBARIUM RESOURCES
SERNEC: Find Pycnanthemum verticillatum in Southeast Regional Network of Experts and Collections (if available) UNC SERNEC: Find Pycnanthemum verticillatum in
University of North Carolina Chapel Hill Herbarium - Southeast Regional Network of Experts and Collections (if available)