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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


to 4.1 dm × 1–4.6 mm.


blades 1.5–4.5 mm wide distal to midlength.


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.


4.5–11.3 mm.


12.5–33 mm;

filaments 6–12.2 mm;

anthers 3–10.2 mm;

ovary 2–5.6 mm;

pedicel 2–3.8 cm.


= 64.

Olsynium douglasii

from USDA
w North America
[WildflowerSearch map]
[BONAP county map]

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

1. Filament column abruptly and broadly flared at base.
O. douglasii var. inflatum
1. Filament column slightly or not flared.
O. douglasii var. douglasii
Source FNA vol. 26.
Parent taxa Iridaceae > Olsynium
Subordinate taxa
O. douglasii var. douglasii, O. douglasii var. inflatum
Synonyms Sisyrinchium douglasii
Name authority (A. Dietrich) E. P. Bicknell: Bull. Torrey Bot. Club 27: 237. (1900)
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