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Cynanchum laeve

Species category

Weed

Common name

honeyvine

Diagnostic characters

Planting unit

True seedTrue seed:
A mature fertilized ovule consisting of an embryo, with or without and external food reserve (e.g., endosperm) enclosed by the testa.

Shape

SpatulateSpatulate:
Having a narrow base and rounded apex. Pear-shaped.
 obovate

Size

  • Length 7 mm
  • Width 5 mm
  • Thickness 1 mm

Color

Light brown

Texture

Moderately smooth

Other structures

The basalBasal:
The base of the fruit or seed opposite the apical end.
 end is truncated and winged on the outer margin.

Identification notes

The tuft of hair originally attached to the basalBasal:
The base of the fruit or seed opposite the apical end.
 end is usually lost. Seed with a longitudinal hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 on one side, and the other side with the ovalOval:
Broadly elliptic.
 outline of the internal seed structure. RapheRaphe:
A seam or ridge found on seeds.
 ridge evident.

Noxious weed seed categories

State Noxious Weed: Kansas

AOSA examination list

Not included

Nomenclature

Family

Asclepiadaceae

Valid name

Cynanchum laeve (Michx.) Pers.

Synonyms

Ampelamus albidus (Nutt.) Britton
Ampelamus laevis (Michx.) Krings
Gonolobus laevis Michx.

Cynanchum laeve. Seeds with a truncated basal end are winged on the other margin.
Cynanchum laeve. Seeds with a truncated basal end are winged on the other margin.