SHARP-TOOTHED MINT

SHARP-LEAVED MINT

Mentha x villosonervata

Mint / Dead-Nettle Family [Lamiaceae]

month8jul month8july month8aug month8sep month8sept month8oct

status
statusZneophyte
flower
flower8pink
morph
morph8hemizygo
petals
petalsZ4
type
typeZspiked
type
typeZtieredwhorls
stem
stem8square
sex
sexZsterile

6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone
Frequently found in gardens this specimen found on heathland.


6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone


6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone
The flowers are a brighter shade of pink than most other Mints.


6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone
Flowers here going to fruit.


6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone
The Sharp-toothed or Sharp-leaved description in the common names refers to the teeth on the leaves being long and pointed - the teeth are often acuminate and curve outwards, with some teeth sticking out at right-angles especially near the base of the leaves


6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone
The bi-forked stigmas here are prominent. The filaments can be either within the petals or outside as are the stigmas.


6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone
Forked stigmas.


6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone
You can just about discern the anthers within the lowest flower. They are just peeking out from the corolla. The flowers are sterile.




A HERBARIUM SPECIMEN SHEET

6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone


6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone


6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone
Leaves opposite and broadest in the middle.


6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone
Showing the lanceolate-elliptical leaves with rounded to subcuneate leaf-bases. Branched stems.


6th Oct 2007, Heathland, IoW. Photo: (CC by 2.0) Geoff Toone
Stems square as they are on all mints.


Not to be semantically confused with : Sharp-Leaved Fluellen (Kickxia elatine) or Sharp-leaved Pondweed (Potamogeton acutifolius) [plants with similar names in differing families]

Sharp-toothed Mint is the hybrid between Spear Mint (Mentha spicata) and Horse Mint (Mentha longifolia) - the latter does not occur in the UK.

It is a naturalised neophyte which may have originated from gardens. It grows in rough or waste ground almost throughout the UK apart from Northern Scotland or Ireland where it is rare.


  Mentha x villosonervata  ⇐ Global Aspect ⇒ Lamiaceae  

Distribution
 family8Mint / Dead-Nettle family8Lamiaceae
 BSBI maps
genus8Mentha
Mentha
(Mints)

SHARP-TOOTHED MINT

SHARP-LEAVED MINT

Mentha x villosonervata

Mint / Dead-Nettle Family [Lamiaceae]