Flora of North America species comparison

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Olsynium douglasii

Olsynium douglasii var. 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
Photo is of parent taxon

Douglas grass widows, Douglas' grasswidow, grass widows, purple-eyed grass-widow, purple-eyed-grass, 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.

Filament

columns tapering evenly to base or slightly flared.
2n

= 64.

Olsynium douglasii

Olsynium douglasii var. douglasii
Phenology Flowering late winter–early summer.
Habitat Open, often rocky areas moist in spring, oak woodlands, coniferous forests, sagebrush, lake margins
Elevation 0–2200 m (0–7200 ft)
Distribution
from USDA
w North America
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR; WA; BC
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Filament column abruptly and broadly flared at base.
var. inflatum
1. Filament column slightly or not flared.
var. douglasii
Source FNA vol. 26. FNA vol. 26.
Parent taxa Iridaceae > Olsynium Iridaceae > Olsynium > Olsynium douglasii
Sibling taxa
O. douglasii var. inflatum
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) unknown
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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