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pale blue-eyed grass

roadside 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. Herbs, perennial, cespitose, olive to bronze-olive when dry, to 3.2 dm, not glaucous.
Stems

branched, with 1 or 2 nodes, often purplish, 0.5–2(–2.2) mm wide, glabrous, margins entire to denticulate, similar in color and texture to stem body;

first internode 3.2–7.2 cm, usually shorter than leaves;

distalmost node with 1–3 branches.

Leaf

blades glabrous, bases not persistent in fibrous tufts.

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.

borne singly;

spathes purplish-tinged basally and sometimes along margins, obviously wider than supporting branch, glabrous, keels entire to occasionally denticulate;

outer 12.5–25 mm, 0.9–2.7 mm longer than inner, tapering evenly towards apex, margins basally connate 2.2–3.8(–5) mm;

inner with keel evenly curved or straight, hyaline margins 0.2–0.4 mm wide, apex acuminate to acute or occasionally obtuse, 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.

tepals pale blue to bluish violet or white, bases yellow;

outer tepals 6.1–10 mm, apex rounded to truncate, aristate;

filaments connate ± entirely, glabrous or sparsely stipitate-glandular basally;

ovary similar in color to foliage.

Capsules

beige to dark brown, globose, 3–5 mm;

pedicel ascending.

medium brown to black, ± globose, 3.1–4.7 mm;

pedicel spreading or ascending.

Seeds

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

globose to obconic, lacking obvious depression, 0.9–1.1 mm, rugulose.

2n

= 64.

= 32.

Sisyrinchium pallidum

Sisyrinchium langloisii

Phenology Flowering mid summer. Flowering spring.
Habitat Poorly drained, montane meadows Moist prairies, roadsides, open woods
Elevation 2600–3000 m (8500–9800 ft) 0–200 m (0–700 ft)
Distribution
from FNA
CO; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; AR; GA; LA; MS; OK; TN; TX
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[BONAP county map]
Discussion

Of conservation concern.

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

Sisyrinchium implicatum E. P. Bicknell probably belongs here; the type (Hilgard s.n., Apr 1858, Calhoun Co., Mississippi, MO) was not seen.

Sisyrinchium langloisii is to be expected in northeastern Mexico.

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

Source FNA vol. 26, p. 367. FNA vol. 26, p. 364.
Parent taxa Iridaceae > Sisyrinchium 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
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. littorale, S. longipes, S. miamiense, S. minus, S. montanum, S. mucronatum, S. nashii, S. pallidum, S. pruinosum, S. radicatum, S. rosulatum, S. sagittiferum, S. sarmentosum, S. septentrionale, S. strictum, S. xerophyllum
Synonyms S. canbyi, S. flaccidum, S. furcatum
Name authority Cholewa & Douglass M. Henderson: Brittonia 36: 361, fig. 7E–G. (1984) Greene: Pittonia 4: 32. (1899)
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