Burke: Triglochin maritima vs. Triglochin concinna

	Triglochin maritima	Triglochin concinna
	seaside arrow-grass	graceful arrow-grass
Habit	Scapose, herbaceous perennials from woody rhizomes, the scapes 3-12 dm. tall.
Leaves	Leaves from the rhizome, narrowly linear, the blades flattened, 1.5-2.5 mm. wide, blunt; ligules entire or shallowly lobed, 1.5-4 mm. long.
Flowers	Flowers perfect, in compact racemes which are over half the length of the plant; pedicles 2-3 mm. long, ascending; perianth segments 6, greenish or purplish, about 2 mm. long; stamens 6, the anthers sessile in the axils of the perianth segments.
Fruits	Follicles oblong, 5 mm. long, the 6 carpels rounded at the base and with a recurved beak, completely deciduous.

	Triglochin maritima	Triglochin concinna
Flowering time	May-August	May-July
Habitat	Marshy to moist, gravelly areas, mostly were saline or alkaline.	Dry meadows and marshes, always where brackish or saline to alkaline.
Distribution	Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, further eastward across the northern U.S. and southern Canada to the Atlantic Coast. [WildflowerSearch map] [BONAP county map]	Occurring west of the Cacades crest along the coast in Washington; southwestern British Columbia to California, east to the Rocky Mountains and northern Great Plains. [BONAP county map]
Origin	Native	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	T. concinna, T. palustris, T. scilloides, T. striata	T. maritima, T. palustris, T. scilloides, T. striata
Subordinate taxa		T. concinna var. concinna
Web links	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Triglochin maritima

Triglochin concinna

seaside arrow-grass

graceful arrow-grass

Habit

Scapose, herbaceous perennials from woody rhizomes, the scapes 3-12 dm. tall.

Leaves

Leaves from the rhizome, narrowly linear, the blades flattened, 1.5-2.5 mm. wide, blunt;

ligules entire or shallowly lobed, 1.5-4 mm. long.

Flowers

Flowers perfect, in compact racemes which are over half the length of the plant; pedicles 2-3 mm. long, ascending;

perianth segments 6, greenish or purplish, about 2 mm. long;

stamens 6, the anthers sessile in the axils of the perianth segments.

Fruits

Follicles oblong, 5 mm. long, the 6 carpels rounded at the base and with a recurved beak, completely deciduous.

Triglochin maritima

Triglochin concinna

Flowering time

May-August

May-July

Habitat

Marshy to moist, gravelly areas, mostly were saline or alkaline.

Dry meadows and marshes, always where brackish or saline to alkaline.

Distribution

Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, further eastward across the northern U.S. and southern Canada to the Atlantic Coast.

[WildflowerSearch map]

[BONAP county map]

Occurring west of the Cacades crest along the coast in Washington; southwestern British Columbia to California, east to the Rocky Mountains and northern Great Plains.

[BONAP county map]

Origin

Native

Conservation status

Not of concern

Sibling taxa

T. concinna, T. palustris, T. scilloides, T. striata

T. maritima, T. palustris, T. scilloides, T. striata

Subordinate taxa

T. concinna var. concinna

Web links