Plants with strands of old leaves at base, (5--)10--15(--20) cm. Leaves curving outward from sheath at 30--50° angle, slender, almost terete, equaling or slightly longer than scapes, (5--)10--15(--20) cm; sheath 12.5--21  1.8----3 mm, ligule often hoodlike, apically 2-lobed; blade 0.5--1 mm wide, apex acute. Inflorescences: scapes often purple near base, (5--)10--15(--20) cm  0.5--1(--1.5) mm; thick; racemes (2--)3--5(--7) cm; pedicels 1.4--4  0.1 mm. Flowers: tepals somewhat rounded, 1.2--1.5  1.1--1.8 mm, apex obtuse; pistils (3--)6--(9--12), 6 fertile. Fruits: fruiting receptacle without wings; schizocarps linear, 3--4  1 mm; mericarps linear, weakly ridged, 3--4  1 mm, beak recurved, 0.9--1 mm. 2n = 96.

Flowering summer (Jul--Aug). Tidal saltwater marshes, usually submerged daily; of conservation concern; 0 m; N.B., Nfld. and Labr. (Nfld.), N.S., P.E.I., Que.; Maine.

Plants of Triglochin gaspensis tend to form lawnlike patches in contrast to the clumped habit of other northern species of the genus.

SELECTED REFERENCE

Löve, D. and H. Lieth. 1961. Triglochin gaspense, a new species of arrow grass. Canad. J. Bot. 39: 1261--1272.