Eryngium yuccifolium

Species category

Flower, Weed

Common name

button eryngo

Diagnostic characters

Planting unit

MericarpMericarp:
One-half of a two-sectioned fruit known as a schizocarp (e.g. carrot).

Shape

Truncate

Size

  • Length 3–4 mm
  • Width 2.5–3 mm
  • Thickness 1.2–1.5 mm

Color

The dorsalDorsal:
Upper side or back of a seed or fruit.
is brown; the ventralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
is black.

Texture

DorsalDorsal:
Upper side or back of a seed or fruit.
and lateral sides with coarse scales

Other structures

VentralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
side is flat and scurfyScurf:
Having flakes on the surface.
.

Identification notes

ApicalApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
end is cup-like by the surrounding scales.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Apiaceae

Valid name

Eryngium yuccifolium Michx.

 Eryngium yuccifolium.  Mericarps with a cup-like apical end are surrounded by scales.
Eryngium yuccifolium. Mericarps with a cup-like apical end are surrounded by scales.
 Eryngium yuccifolium.  Mericarps with dorsal and lateral sides with coarse scales.
Eryngium yuccifolium. Mericarps with dorsal and lateral sides with coarse scales.