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beak ditch-grass, ditch grass, sea ditch-grass, spiral ditch-grass, western ditch-grass, widgeon-grass, wigeongrass

Stems

to 50 cm × 0.1–0.7 mm.

Leaves

6–10.5 cm;

blade 0.3–0.5 mm, apex ± obtuse.

Inflorescences

peduncles with 0–3[–4] coils, 0.5–16.5 × 0.5 mm.

Flowers

pistils 4–8.

Fruits

1.8–2 × 0.7–1.5 mm;

gynophore 1.2–1.9 cm;

beak terminal, slightly recurved, 0.6–1 mm.

2n

= 16.

Ruppia maritima

Phenology Flowering spring–fall.
Habitat Shallow waters of brackish streams, ditches, and lakes along ocean shore
Elevation 0–200 m [0–700 ft]
Distribution
from FNA
AK; AL; CA; CT; DE; FL; GA; LA; MA; MD; ME; MS; NC; NH; NJ; NY; OR; RI; SC; TX; VA; WA; BC; NB; NF; NS; ON; PE; QC; SK; SPM; Central America; South America; coastal Mexico; West Indies; Bermuda; Eurasia; Africa; Australia
[WildflowerSearch map]
[BONAP county map]
Discussion

No specimens have been seen from Washington, D. C., but the species is to be expected there.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 22.
Parent taxa Ruppiaceae > Ruppia
Sibling taxa
R. cirrhosa
Synonyms R. maritima var. brevirostris, R. maritima var. exigua, R. maritima, R. maritima var. longipes, R. maritima var. obliqua, R. maritima var. rostrata, R. maritima var. subcapitata
Name authority Linnaeus: Sp. Pl. 1: 127. (1753)
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