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strict blue-eyed grass

Habit Perennial clump-forming herbs, green, turning brownish or bronze when dry, to 50 cm, not glaucous, inconspicuously rhizomatous; stems unbranched, distinctly 2-winged, 2-3.7 mm wide, glabrous, margins denticulate apically in western populations.
Leaves

Leaves 2-6;

blade plane, sword-shaped with sharp edges and pointed apex, typically glabrous, bases not persistent forming fibrous tufts.

Flowers

Inflorescences fan-shaped, terminal, borne singly, 1-11 flowered;

spathes 2, green or bronze, uncommonly with purplish margins, glabrous, keels generally serrated; outer spathe 36-76 mm, slightly constricted below apex, margins connate basally 2-5.7 mm; inner spathe with keel somewhat gibbous basally, curving near base, margins translucent and 0.1-0.3 mm broad, apex acuminate to acute, ending 0.9-4.3 mm proximal to recurved green apex;

tepals bluish violet with yellow bases, spreading to reflexed;

outer tepals 9-14.5 mm, apex emarginate to rounded and slightly notched, bristle-tipped;

filaments connate, tapering to apex, with basal stalked glands;

anthers encircling but not appressed to style branches;

styles 3, erect, connate basally at minimum, threadlike, extending outward through stamens typically past anthers;

ovary color similar to foliage.

Fruits

Capsules globose to obovoid, tan to darker brown, sometimes with purplish tinge toward apex, 4-6.8 mm;

seeds globose to obconic, distinct depression absent, black-coated, finely wrinkled, 0.9-1.5 mm.

Sisyrinchium atlanticum

Sisyrinchium montanum

Flowering time May-July
Habitat Moist meadows, stream banks, and for openings at low to middle elevations.
Distribution
[WildflowerSearch map]
[BONAP county map]
Occurring east of the Cascades crest in north-central Washington; Yukon Territory to Washington, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and northeastern North America.
[WildflowerSearch map]
[BONAP county map]
Origin Native
Conservation status Threatened in Washington (WANHP)
Sibling taxa
S. californicum, S. idahoense, S. littorale, S. montanum, S. sarmentosum, S. septentrionale
S. californicum, S. idahoense, S. littorale, S. sarmentosum, S. septentrionale
Subordinate taxa
S. montanum var. montanum
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