BLUE EYED GRASS (Sisyrinchium)

Many (over 40) varieties and many common names ending with "blue eyed grass".
http://bonap.net/NAPA/TaxonMaps/Genus/County/Sisyrinchium
-BONAP state and county maps with distribution
http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=130515
-key

Stout Blue-eyed Grass (Sisyrinchium angustifolium) - native
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aka Narrowleaf Blue-eyed Grass, Pointed Blue-Eyed Grass
-some photos I've seen show the spathe (bract) to be much higher than flower, other photos don't show this
http://www.ct-botanical-society.org/Plants/view/561
-4 to 20" tall
-blue flowers on long stalks, 1/2" across
-stem winged and 2.5 to 4mm wide
http://chestofbooks.com/flora-plants/flowers/Wild-Flowers-New-York/Pointed-Blue-Eyed-Grass-Sisyrinchium-Angustifolium-Miller-Plate-28a.html
-green or slightly purplish spathes, the outer rather less than twice the length of the inner one
-wider stems than S. mucronatum
-seed capsules often purplish tinged, about 1/4" or less in diameter
-fields and hillsides
https://www.minnesotawildflowers.info/flower/needle-pointed-blue-eyed-grass
-easily distinguished by its multiple, long-stalked flower clusters arising from the spathe

Slender Blue-eyed Grass (Sisyrinchium mucronatum) native
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aka Needletip Blue-eyed Grass, Michaux's Blue-eyed-Grass, Narrow-Leaved Blue-eyed-Grass
http://uswildflowers.com/detail.php?SName=Sisyrinchium%20mucronatum
-reddish or purple spathes is a key species indicator
-narrower stems than most
https://www.minnesotawildflowers.info/flower/needle-pointed-blue-eyed-grass
-deep blue to violet
-usually only one flower per stem
-fields, meadows, open shorelines, forest edges
-the narrow stems have faint (small?) wings
https://www.minnesotawildflowers.info/flower/needle-pointed-blue-eyed-grass
- flowering stems much longer than leaves, very slender and wiry, about 1/16 inch wide with absent or scarcely discernible wings
-can be distinguished by its overall slenderness in both leaves and barely winged stems
-spathe is sometimes green

Common Blue-Eyed Grass (Sisyrinchium montanum)
http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242101914
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