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Monarda didyma

Species category

Flower, Weed

Common name

scarlet beebalm, Oswego tea, monarde écarlate

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 two moderately flat surfaces on ventralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
side

Size

  • Length 1.5–1.9 mm
  • Width 1–1.1 mm
  • Thickness 0.6–0.8 mm

Color

Brown

Texture

Rough

Other structures

A scar is large and indented at the rib on the ventralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
side.

Identification notes

Longitudinal veins on the dorsalDorsal:
Upper side or back of a seed or fruit.
 side.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Lamiaceae

Valid name

Monarda didyma L.

Monarda didyma. Nutlets with a large scar and are indented at the rib on the ventral side.
Monarda didyma. Nutlets with a large scar and are indented at the rib on the ventral side.