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FNA | Family List | FNA Vol. 4 | Chenopodiaceae | Suaeda

6. Suaeda linearis (Elliott) Moquin-Tandon, Chenop. Monogr. Enum. 130. 1840.

Southern sea-blite

Salsola linearis Elliott, Sketch Bot. S. Carolina 1: 332. 1817

Herbs, perennial, annual in colder regions, erect or ascending, dark green or glaucous, 2-9 dm. Stems erect, green to reddish, often profusely branched from base, slightly woody at base; branches ascending or spreading, not decumbent, slender. Leaves ascending or spreading; blade narrowly linear, planoconvex to semiterete, 7-50 × 0.8-1.8 mm, apex acute. Glomes in usually dense, branched, compound spikes, 1-3-flowered; spike ascending, 1-12 cm, slender; bracts shorter than leaves, 2-7(-12) × 2-4 mm. Flowers bisexual; perianth ± irregular or zygomorphic (segments slightly to strongly unequal), 1.2-2.5 mm diam.; perianth segments thin, at least one segment abaxially rounded and keeled and/or distally hooded, apex acute; stigmas 2(-5). Seeds dimorphic; lenticular, 1-1.8 mm diam., with seed coat black, finely reticulate, shiny; or flat, 1.5-2.6 mm, with seed coat brown, dull. 2n = 54.

Flowering late summer-fall. Salt marshes, sandy beaches, other coastal wetlands; 1-10 m; Ala., Conn., Del., Fla., Ga., La., Maine, Md., Mass., Miss., N.H., N.J., N.Y., N.C., Pa., R.I., S.C., Tex., Va.; Mexico; West Indies (Bahamas).

Suaeda linearis is strictly annual (probably related to freezing conditions of winter) and usually green in the northern part of its range; it is usually perennial and glaucous in the southern part.


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