Online Virtual Flora of Wisconsin

Triglochin maritima L.

Family: Juncaginaceae

arrow-grass, common bog arrow-grass, seaside arrow-grass

[Triglochin concinna Burtt Davy, more...]

Kenneth J. Sytsma

Merel R. Black

University of Wisconsin-Stevens Point, Robert W. Freckmann Herbarium (UWSP)

Open Interactive Map

Etymology: Triglochin: from the Greek tri, "three," and glochis, "a point," referring to the fruit of some species
Plants: erect, perennial, 8"-30" tall forb with very slender stems
Leaves: erect, up to 20" long Flowers: 6-parted, each flower stalk curved; inflorescence a 4"-16" spike-like cluster (raceme); blooms May-Aug.
Fruits: oblong capsule, fruit drawing

Habitat: sun; moist; bogs, fens
Hazardous: Careful, this plant is hazardous!
Conservation Status: Native

Neutral to alkaline, wet habitats, in southern Wisconsin in calcareous fens, stream borders, sedge meadows surrounding tamarack bog relicts, and flarks in a string bog, across the north on peat-sedge mats on the margins of "bog" lakes with ericads, carnivorous plants, and rare orchids, wet openings within conifer swamps, cobbly, marly, or sandy shores, and slough and lagoon fens along Lake Superior, also sand ridges at Baileys Harbor. A circumpolar, morphologically variable, cytologically diverse complex (see Löve & Löve 1958, Ford & Ball 1988).
Far more common than T. palustris, with which it sometimes grows.

Flora of North America: Flora of North America Floristic Rating: Coefficient of Conservatism = 10, Wetland Indicator = OBL USDA Plants Database: Federal Distribution and detailed information including photos