HORSEMINT
horsemint, Mentha longifolia
(noun) a coarse Old World wild water mint having long leaves and spikelike clusters of flowers; naturalized in the eastern United States
horsemint, Monarda punctata
(noun) tall erect perennial or annual having lanceolate leaves and heads of purple-spotted creamy flowers; many subspecies grown from eastern to southwestern United States and in Mexico
Source: WordNet® 3.1
Etymology
Noun
horsemint (countable and uncountable, plural horsemints)
(US) A coarse American plant of the mint family (Monarda punctata).
(UK) The wild mint (Mentha sylvestris, now Mentha longifolia).
(Southwestern US, Northwestern US) An aromatic plant of the mint family, Agastache urticifolia.
Synonyms
• (Monarda punctata): spotted bee balm, spotted horsemint, dotted horsemint
• (Agastache urticifolia): nettle-leaved horsemint, nettle-leaf giant hyssop
Anagrams
• hormetins, mentorish, thermions
Source: Wiktionary
Horse"mint`, n. (Bot.)
(a) A coarse American plant of the Mint family (Monarda punctata).
(b) In England, the wild mint (Mentha sylvestris).
Source: Webster’s Unabridged Dictionary 1913 Edition