Flora of North America species comparison

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Olsynium douglasii
Olsynium douglasii

Douglas' blue-eyed-grass (var. douglasii), Douglas' grass-widow, grass widows, grass-widow, purple blue-eyed-grass (var. inflatum), purple-eyed grass, purple-eyed grass-widow, satinflower
Stems

to 4.1 dm × 1–4.6 mm.
Leaf

blades 1.5–4.5 mm wide distal to midlength.
Spathes

4.3–7 mm wide, outer 2–6.2 cm;

hyaline margins 0.2–0.5(–1.6) mm wide, extending to just proximal to, or occasionally exceeding, green apex.
Capsules

4.5–11.3 mm.
Tepals

12.5–33 mm;

filaments 6–12.2 mm;

anthers 3–10.2 mm;

ovary 2–5.6 mm;

pedicel 2–3.8 cm.
2n

= 64.

Olsynium douglasii
Distribution
map from USDA
w North America
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Parent taxa Iridaceae > Olsynium
Subordinate taxa
O. douglasii var. douglasii, O. douglasii var. inflatum
Key
1. Filament column abruptly and broadly flared at base.
var. inflatum
1. Filament column slightly or not flared.
var. douglasii
Synonyms Sisyrinchium douglasii
Name authority (A. Dietrich) E. P. Bicknell: Bull. Torrey Bot. Club 27: 237. (1900)
Source FNA vol. 26. Treatment authors: Anita F. Cholewa, Douglass M. Henderson†.
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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