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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

Photo is of parent taxon

grass-widow, inflated grass widows, inflated grasswidow, inflated 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.

Filament

columns abruptly and broadly flared at base.

2n

= 64.

Olsynium douglasii

Olsynium douglasii var. inflatum

Phenology Flowering early spring–early summer.
Habitat Open, often rocky areas moist in spring, coniferous forest, sagebrush, margins of lakes
Elevation 80–2400 m (300–7900 ft)
Distribution
from USDA
w North America
[WildflowerSearch map]
[BONAP county map]
from FNA
ID; NV; OR; UT; 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. douglasii
Subordinate taxa
O. douglasii var. douglasii, O. douglasii var. inflatum
Synonyms Sisyrinchium douglasii O. inflatum
Name authority (A. Dietrich) E. P. Bicknell: Bull. Torrey Bot. Club 27: 237. (1900) (Suksdorf) Cholewa & Douglass M. Henderson: Madroño 38: 232. (1991)
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