Sisyrinchium pallidum |
Sisyrinchium langloisii |
|
---|---|---|
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 |
CO; WY
|
AL; AR; GA; LA; MS; OK; TN; TX
|
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 | ||
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) |
Web links |