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Strict Blue Eyed Grass

Sisyrinchium montanum Greene

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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.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 352, 356, 361, 365, 366, 367, 371 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description

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Herbs, perennial, cespitose, pale to olive green or dark brown to bronze when dry, to 5 dm, not glaucous; rhizomes scarcely discernable. Stems 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. Leaf blades glabrous, bases not persistent in fibrous tufts. Inflorescences 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. Flowers: 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. Capsules tan to dark brown, sometimes with purplish tinge apically, ± globose to obovoid, 4–6.8 mm; pedicel erect to spreading. Seeds globose to obconic, lacking obvious depression, 0.9–1.5 mm, rugulose.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 352, 356, 361, 365, 366, 367, 371 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
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eFloras

Sisyrinchium montanum

provided by wikipedia EN

Sisyrinchium montanum, the blue-eyed-grass, American blue-eyed-grass,[2] or strict blue-eyed grass,[3] is a grass-like species of plant from the genus Sisyrinchium, native to northern North America from Newfoundland west to easternmost Alaska, and south to Pennsylvania in the east, and to New Mexico in the Rocky Mountains. It has also been introduced to parts of France, likely during the First World War.[4]

It is very similar to S. angustifolium, with which it is sometimes combined.[5]

Description

Sisyrinchium montanum is a herbaceous perennial plant that grows in clumps between 10 and 50 cm (4 and 20 in) tall. Its stems have wings with entire to finely toothed margins. The leaves and stem are slender, 3 mm (18 in) broad, green or brownish, with sharp edges and a fine point.

The flowers are produced in a small cyme of two to five together emerging from a spathe, each flower about 2 cm (34 in) diameter, with six purplish tepals with a yellowish base and yellow stamens. The fruit is a capsule 4.5–6 mm (0.18–0.24 in) long, containing numerous small black seeds.[5][6]

References

  1. ^ "Sisyrinchium montanum". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew. Retrieved 20 July 2014 – via The Plant List. Note that this website has been superseded by World Flora Online
  2. ^ "Sisyrinchium montanum". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved 1 July 2014.
  3. ^ USDA, NRCS (n.d.). "Sisyrinchium montanum var. montanum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team.
  4. ^ Sabrina Imbler (2019-12-06). "In France, a Bloody WWI Battlefield Has Become a Wildlife Refuge". Atlas Obscura. Retrieved December 10, 2019. Patches of the forest bloom with Sisyrinchium montanum, or American blue-eyed grass, which stowed away as seeds on the hooves of U.S. Army horses that came through Verdun.
  5. ^ a b Cholewa, Anita F.; Henderson, Douglass M. (2002). "Sisyrinchium montanum". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 26. New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  6. ^ Plants of British Columbia: Sisyrinchium montanum

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Sisyrinchium montanum: Brief Summary

provided by wikipedia EN

Sisyrinchium montanum, the blue-eyed-grass, American blue-eyed-grass, or strict blue-eyed grass, is a grass-like species of plant from the genus Sisyrinchium, native to northern North America from Newfoundland west to easternmost Alaska, and south to Pennsylvania in the east, and to New Mexico in the Rocky Mountains. It has also been introduced to parts of France, likely during the First World War.

It is very similar to S. angustifolium, with which it is sometimes combined.

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