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pale blue-eyed grass

Habit Herbs, perennial, cespitose, green to olive when dry, to 3 dm, not glaucous; rhizomes scarcely discernable. Stems simple, 1–2 mm wide, glabrous, margins entire, similar in color and texture to stem body.
Leaf

blades glabrous, bases not persistent in fibrous tufts.

Inflorescences

borne singly;

spathes green, glabrous, keels entire;

outer 28–38 mm, 7–26 mm longer than inner, basally connate 2.6–4.3 mm, often very slightly constricted proximal to apex;

inner with keels evenly curved, hyaline margins 0.1–0.5 mm wide, apex usually acute, ending 0–1.5 mm proximal to green apex.

Flowers

tepals pale blue, bases yellow;

outer tepals 7.6–10 mm, apex slightly emarginate or rounded, aristate;

filaments connate ± entirely, stipitate-glandular basally;

ovary similar in color to foliage.

Capsules

beige to dark brown, globose, 3–5 mm;

pedicel ascending.

Seeds

globose to obconic, lacking obvious depression, 0.8–1.2 mm, granular or somewhat rugulose.

2n

= 64.

Sisyrinchium pallidum

Phenology Flowering mid summer.
Habitat Poorly drained, montane meadows
Elevation 2600–3000 m (8500–9800 ft)
Distribution
from FNA
CO; WY
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

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

Source FNA vol. 26, p. 367.
Parent taxa Iridaceae > Sisyrinchium
Sibling taxa
S. albidum, S. angustifolium, S. arizonicum, S. atlanticum, S. bellum, S. biforme, S. californicum, S. campestre, S. capillare, S. cernuum, S. demissum, S. dichotomum, S. elmeri, S. ensigerum, S. funereum, S. fuscatum, S. groenlandicum, S. halophilum, S. hitchcockii, S. idahoense, S. langloisii, S. littorale, S. longipes, S. miamiense, S. minus, S. montanum, S. mucronatum, S. nashii, S. pruinosum, S. radicatum, S. rosulatum, S. sagittiferum, S. sarmentosum, S. septentrionale, S. strictum, S. xerophyllum
Name authority Cholewa & Douglass M. Henderson: Brittonia 36: 361, fig. 7E–G. (1984)
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