Dig deeper at SERNEC, a consortium of southeastern herbaria.

In many older references this plant went by the name S. virginica. Confusingly, another species -- the former S. europaea -- is now named as S. virginica! Read more at Vascular Plants of North Carolina.

INCLUDING & INCLUDED WITHIN, APPARENTLY MISAPPLIED TO EAST COAST MATERIAL PLANTS NATIONAL DATABASE:
Sarcocornia perennis   FAMILY Chenopodiaceae

Flora of North America

Sarcocornia pacifica

(?) (MISAPPLIED) VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 064-05-003:

Salicornia virginica   FAMILY Chenopodiaceae

Manual of the Southeastern Flora (Small, 1933, 1938)

Salicornia perennis

COMMON NAME:
Perennial Glasswort, Woody Glasswort, Pickleweed

NameThatPlant has no pictures at this time. You might try this link: Flora of the Southeastern United States

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (2/8/20):
Salicornia ambigua   FAMILY Chenopodiaceae

INCLUDING & INCLUDED WITHIN, APPARENTLY MISAPPLIED TO EAST COAST MATERIAL PLANTS NATIONAL DATABASE:
Sarcocornia perennis   FAMILY Chenopodiaceae

Flora of North America
Sarcocornia pacifica

(?) (MISAPPLIED) VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 064-05-003:
Salicornia virginica   FAMILY Chenopodiaceae

Manual of the Southeastern Flora (Small, 1933, 1938)
Salicornia perennis