Rhus glabra

Species category

Shrub or Tree, Weed

Common name

smooth sumac, sumac glabre

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

OvalOval:
Broadly elliptic.

Size

  • Length 2.8–3.5 mm 
  • Width 2–2.6 mm 
  • Thickness 0.9–1 mm 

Color

Black to dark brown

Texture

Rough 

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
is on the margin with a marginal line.

Identification notes

Seeds are borne in single-seeded fruit podsPod:
A dehiscent fruit produced by leguminous plants (beans, peas). Also known as a legume.
. Seeds are laterally compressed.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Anacardiaceae

Valid name

Rhus glabra L.

Synonyms

Rhus calophylla Greene
Rhus glabra L. var. cismontana (Greene) Cockerell
Rhus glabra L. var. laciniata Carrière
Rhus glabra L. var. occidentalis Torr.

 Rhus glabra.  True seeds that are borne in single-seeded fruit pods.
Rhus glabra. True seeds that are borne in single-seeded fruit pods.