|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Lamiaceae (Labiatae)||View Description||Dichotomous Key|
|Genus: Mentha||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Mentha ×rotundifolia (L.) Huds.
Stem: 3--10 dm, generally short-hairy. Leaf: 2.6--6(8) cm; petiole 0--2 mm; blade ovate, generally serrate, base tapered to +- lobed, tip acute. Inflorescence: spike-like, clustered at distal 3--5 nodes, subtending bracts ovate to lance-linear. Flower: calyx 1.5--2.5 mm, ciliate; corolla 2.5--3.5 mm, white to pink or violet; stamens generally included. Chromosomes: 2n=24.
Ecology: Moist places, fields; Elevation: < 800 m. Bioregional Distribution: GV, CCo, TR, cultivated elsewhere; Distribution Outside California: to Canada, eastern United States; native to Europe, naturalized from cultivation. Flowering Time: Jul--Oct Note: Hybrid of Mentha suaveolens and Mentha longifolia. Difficult to distinguish from Mentha ×villosa.
eFlora Treatment Author: Arthur O. Tucker
Jepson Online Interchange
Previous taxon: Mentha pulegium
Next taxon: Mentha ×smithiana
Citation for this treatment: Arthur O. Tucker 2017. Mentha ×rotundifolia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=93857, accessed on February 23, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 23, 2017.