Sisyrinchium angustifolium |
Sisyrinchium bellum |
|
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Bermudienne à feuilles étroites, blue-eyed grass, narrow-leaf blue-eyed-grass, stout blue-eyed grass |
beautiful blue-eyed grass, blue-eyed grass, western blue-eyed-grass |
|
Habit | Herbs, perennial, cespitose, dark olive green to bronze or blackish when dry, to 4.5 dm, not glaucous. | Herbs, perennial, cespitose, green to ashy olive when dry, to 3.8 dm, not glaucous. |
Stems | branched, with 1–2 nodes, 2.3–5 mm wide, glabrous, margins often minutely denticulate especially basally, similar in color and texture to stem body; first internode 10–30 cm, usually longer than leaves; distalmost node with 1–3 branches. |
branched, with 1–2 nodes, 1.5–5.3 mm wide, glabrous, margins entire to denticulate apically, similar in color and texture to stem body; first internode 11–33 cm, usually equaling or longer than leaves; distalmost node with 2–3 branches. |
Leaf | blades glabrous, bases not persistent in fibrous tufts. |
blades glabrous, bases not persistent in fibrous tufts. |
Inflorescences | borne singly; spathes usually green, obviously wider than supporting branch, glabrous, keels denticulate to entire; outer 18–38 mm, 2–9.5 mm longer than inner, usually tapering evenly towards apex, margins basally connate 4–6 mm; inner with keel evenly curved or straight, hyaline margins 0.1–0.3 mm wide, apex acuminate to acute, ending 0.2–0.7 mm proximal to green apex. |
borne singly; spathes green, obviously wider than supporting branch, glabrous, keels entire to denticulate; outer 14–30 mm, usually 2–7 mm longer than inner, tapering evenly towards apex, margins basally connate 4–7.6 mm; inner with keel evenly curved to straight, hyaline margins 0.1–0.7 mm wide, apex abruptly widening, ending 0.2–1.3 mm proximal to green apex. |
Flowers | tepals pale blue to violet, occasionally white, bases yellow; outer tepals 7.7–12.5 mm, apex rounded or emarginate, aristate; filaments connate ± entirely, stipitate-glandular basally; ovary similar in color to foliage. |
tepals light blue to dark bluish violet or rarely purplish or white, bases yellow; outer tepals often broadly cuneate, 10–17 mm, apex rounded, truncate, or occasionally emarginate, aristate; filaments connate ± entirely, usually glabrous; ovary similar in color to foliage. |
Capsules | dark brown or black, sometimes with purplish tinge, ± globose, 4–7 mm; pedicel spreading or ascending. |
tan to dark brown, globose to obovoid, 3–5 mm; pedicel erect to ascending. |
Seeds | globose to obconic, lacking obvious depression, 0.5–1.2 mm, rugulose. |
globose to obconic, lacking obvious depression, 1.5–2.2 mm, rugulose. |
2n | = 96. |
= 32. |
Sisyrinchium angustifolium |
Sisyrinchium bellum |
|
Phenology | Flowering spring–early summer. | Flowering early spring–late summer. |
Habitat | Moist meadows, stream banks, swamp edges, sandy meadows, moist open woods | Open, mostly moist, grassy areas and woods |
Elevation | 0–800 m (0–2600 ft) | 0–2400 m (0–7900 ft) |
Distribution |
AL; AR; CT; DC; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; NC; NE; NH; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; WV; LB; NS; ON; QC
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CA; OR; Mexico (Baja California)
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Discussion | Sisyrinchium membranaceum E. P. Bicknell probably belongs here; Bicknell indicated that its relationship was “with S. graminoides” and his description falls within that of S. angustifolium, except for slightly shorter spathe bracts. In previous floras, Sisyrinchium angustifolium often has been confused with S. montanum, especially when S. graminoides was segregated. Branching seems to be the primary point of confusion. The original descriptions of S. angustifolium and S. graminoides clearly indicated branching while that of S. montanum indicates it to be single-stemmed. There is some slight similarity between S. montanum var. crebrum and S. angustifolium with respect to spathe connation and dry color, and chromosome counts indicate that both have 2n = 96, but there is some indication that breeding barriers may exist (D. B. Ward 1959). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Sisyrinchium bellum is the most common species of Sisyrinchium in California; it is highly variable in habit, flower color, and size. Plants of serpentine areas are intermediate with S. idahoense var. idahoense; plants of the Transverse Ranges are intermediate with S. demissum. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 361. | FNA vol. 26, p. 363. |
Parent taxa | Iridaceae > Sisyrinchium | Iridaceae > Sisyrinchium |
Sibling taxa | ||
Synonyms | S. graminoides | S. angustifolium var. bellum, S. eastwoodiae, S. greenei, S. hesperium, S. maritimum |
Name authority | Miller: Gard. Dict. ed. 8, Sisyrinchium no. 2. (1768) | S. Watson: Proc. Amer. Acad. Arts 12: 277. (1877) |
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