Spergularia media var. media

unknown
Synonyms: Spergularia marginata KittelSpergularia maritima (Linnaeus) Chiovenda
Treatment appears in FNA Volume 5. Treatment on page 21.
Revision as of 22:20, 26 July 2019 by FNA>Volume Importer
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Plants annual or short-lived perennial with branching caudex, stout, 7–30 cm, glabrous or sparsely stipitate-glandular distally. Taproots slender to moderately stout. Stems erect to ascending or prostrate, much-branched proximally; main stem 1–4 mm diam. proximally. Leaves: stipules inconspicuous, dull white, broadly triangular, 2.6–6 mm, apex acuminate to spine-tipped; blade linear to broadly so, 0.5–3.5 cm, distinctly fleshy, apex apiculate to spine-tipped; axillary leaf clusters mostly absent, sometimes of 2–4 leaves. Cymes simple or 3+-compound. Pedicels reflexed and oriented to 1 side in fruit. Flowers: sepals connate 0.3–1 mm proximally, lobes often 3-veined, lanceolate to ovate, 2.5–5 mm, to 7 mm in fruit, margins 0.1–0.5 mm wide, apex obtuse to rounded; petals white to apically pink, elliptic to obovate, 0.8–1 times as long as sepals; stamens 9–10; styles 0.5–1 mm. Capsules tan, (4.5–)5.5–7(–8) mm, 1.2–1.4 times as long as sepals. Seeds dark reddish brown, submarginal groove absent, broadly ovate, compressed, 0.8–1.1 mm, ± smooth, not papillate; wings usually present, white to reddish brown, 0.3–0.5 mm wide, margins irregular. 2n = 18, 36? (both Europe).


Phenology: Flowering summer–fall.
Habitat: Salt flats, salt marshes, sandy beaches, saline highway edges (Great Lakes region)
Elevation: 0-1700 m

Distribution

Ont., Que., Calif., Colo., Ill., Ind., Mass., Mich., Mont., N.Mex., N.Y., N.Dak., Ohio, Oreg., Pa., Utah, Wyo., coastal Europe except ne, Asia, Africa (Mediterranean region), introduced widely elsewhere including South America, e Asia, Australia.

Discussion

Selected References

None.

Lower Taxa

None.
Ronald L. Hartman +  and Richard K. Rabeler +
unknown +
Arenaria media +
Ont. +, Que. +, Calif. +, Colo. +, Ill. +, Ind. +, Mass. +, Mich. +, Mont. +, N.Mex. +, N.Y. +, N.Dak. +, Ohio +, Oreg. +, Pa. +, Utah +, Wyo. +, coastal Europe except ne +, Asia +, Africa (Mediterranean region) +, introduced widely elsewhere including South America +, e Asia +  and Australia. +
0-1700 m +
Salt flats, salt marshes, sandy beaches, saline highway edges (Great Lakes region) +
Flowering summer–fall. +
Introduced +  and Illustrated +
Spergularia marginata +  and Spergularia maritima +
Spergularia media var. media +
Spergularia media +
variety +