Hyptis suaveolens

Species category

Weed

Common name

pignut, mumutun, wild spikenard

Diagnostic characters

Planting unit

NutletNutlet:
A small, dry, indehiscent carpel of a fruit, usually composed of one quarter of the fruit with each enclosing a single seed (e.g. mints).

Shape

OvalOval:
Broadly elliptic.
with an apicalApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
notch

Size

  • Length 5 mm
  • Width 2.5 mm
  • Thickness 1 mm

Color

Brown with light brown scar

Texture

Minutely tuberculateTuberculate:
Having small pimple-like protuberances.

Other structures

DorsalDorsal:
Upper side or back of a seed or fruit.
and ventralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
side concave with strong ridge, large scar

Identification notes

NutletNutlet:
A small, dry, indehiscent carpel of a fruit, usually composed of one quarter of the fruit with each enclosing a single seed (e.g. mints).
quite compressed with the dorsalDorsal:
Upper side or back of a seed or fruit.
and ventralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
side concave. Center of the concavity has a large, longitudinal ridge that extends the entire length of the nutletNutlet:
A small, dry, indehiscent carpel of a fruit, usually composed of one quarter of the fruit with each enclosing a single seed (e.g. mints).
and splits the scar on the basalBasal:
The base of the fruit or seed opposite the apical end.
end of the ventralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
side.

Noxious weed seed categories

State Noxious Weed: Hawaii 

AOSA examination list

Not included

Nomenclature

Family

Lamiaceae

Valid name

Hyptis suaveolens (L.) Poit.

Synonyms

Mesosphaerum suaveolens (L.) Kuntze

 Hyptis suaveolens.  Nutlets with a large, longitudinal ridge that extends the entire length of the nutlet and splits the scar on the basal end of the ventral side.
Hyptis suaveolens. Nutlets with a large, longitudinal ridge that extends the entire length of the nutlet and splits the scar on the basal end of the ventral side.