Sisyrinchium montanum
Sisyrinchium strictum
Bermudienne montagnarde, mountain blue-eyed-grass, strict blue-eyed-grass
simple, obviously winged, (1.5–)2–3.7 mm wide, glabrous, margins entire (in eastern populations) to denticulate (in western populations) apically, similar in color and texture to stem body.
branched, with 1 node, 1.4–2.3 mm wide, glabrous, margins usually minutely denticulate, similar in color and texture to stem body;
internode with 1–2 branches, 22–42 cm, usually longer than leaves.
blades glabrous, bases not persistent in fibrous tufts.
blades glabrous, bases not persistent in fibrous tufts.
borne singly;
spathes usually green or bronze, rarely with purplish margins, glabrous, keels usually denticulate;
outer 36–76 mm, 12–46 mm longer than inner, slightly constricted proximal to apex, margins basally connate 2–5.7 mm;
inner with keel ± gibbous basally, sinuous proximally, hyaline margins 0.1–0.3 mm wide, apex acuminate to acute, ending 0.9–4.3 mm proximal to recurved green apex.
borne singly;
spathes usually with purplish tinge on margins, obviously wider than supporting branch, glabrous, keels entire to occasionally denticulate;
outer 16–22.8 mm, 0.2 mm shorter to 4 mm longer than inner, tapering evenly towards apex, margins basally connate 4.2–6.9 mm;
inner with keel usually straight, hyaline margins 0.1–0.3 mm, apex acute, occasionally obtuse, sometimes separated as 2 lobes, ending 0–0.4 mm proximal to green apex.
tepals dark bluish violet, bases yellow;
outer tepals 9–14.5 mm, apex emarginate to retuse, aristate;
filaments connate ± entirely, stipitate-glandular basally;
ovary similar in color to foliage.
tepals pale to deep bluish violet, bases yellow;
outer tepals 9–19.5 mm, apex rounded or truncate, aristate;
filaments connate ± entirely, usually stipitate-glandular basally;
ovary similar in color to foliage.
tan to dark brown, sometimes with purplish tinge apically, ± globose to obovoid, 4–6.8 mm;
pedicel erect to spreading.
tan to nearly white, occasionally light brown, sometimes with purplish apex, ± globose to ± turbinate, 3.5–4.9 mm;
pedicel erect or ascending.
globose to obconic, lacking obvious depression, 0.9–1.5 mm, rugulose.
globose to obconic, lacking obvious depression, 0.9–1.2 mm, rugulose or granular.
Sisyrinchium montanum
Sisyrinchium strictum
Varieties 2 (2 in the flora).
Eastern coastal populations of Sisyrinchium montanum appear to have some slight affinity to S. angustifolium (e.g., long connation of outer spathe) and some previous floras have combined the two taxa. Some taxonomists have questioned the recognition of varieties within S. montanum, but we feel that the differences between them are no more subtle than those between varieties generally recognized elsewhere in the genus. Living material was not available to us to investigate breeding barriers. Although Sisyrinchium montanum is considered weedy by D. T. Patterson et al. (1989), I have seen many populations all through the western states and Great Lakes areas and would not consider it weedy in any of these portions of the range.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Margins of outer spathe connate basally 4–5.7 mm; plants drying dark brown or bronze. | var. crebrum |
1. Margins of outer spathe connate basally 1–3.5 mm; plants drying green to olive. | var. montanum |
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