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Comments

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Most or all known populations of this species fall within the boundaries of Wisconsin glaciation. The long stems (a trait not known for other North American species) are a response to the burial of the clump bases in deep sphagnum.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Description

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Herbs, perennial, cespitose, 5--30 cm. Stems compact. Leaves in narrow fans, 4--15 cm; sheaths reddish, soft, papillate; blade deep green, narrowly linear, 0.8--2(--3) mm wide, smooth, margins smooth to papillate. Inflorescences: scape sheaths exceeded by leaves; scapes linear, wiry, terete, (0.25--)0.5-- 0.8(--1) mm wide, distally with 2--4 ribs, ribs papillate; spikes broadly to narrowly ellipsoid or ovoid, 4--8 mm; fertile bracts 3--4(--4.5) mm, margins erose or minutely fimbriolate, sometimes with narrow reddish border, apex very slightly to slightly keeled. Flowers: lateral sepals slightly exserted, straight, 4.2--4.7 mm, keel scarious, entire or apically lacerate, apex red, narrow, firm; petals unfolding in morning, blade obovate, 3--4 mm; staminodes bearded. Seeds translucent, narrowly ellipsoid, (0.6--)0.7--0.9(--1) mm, finely lined.
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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. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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eFloras

Distribution

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N.B., Nfld. and Labr. (Nfld.), N.S., Ont., Que.; Conn., Maine, Mass., Mich., Minn., N.H., N.J., N.Y., Pa., R.I., VtT., Wis.
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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. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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eFloras

Flowering/Fruiting

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Flowering summer--fall.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
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Flora of North America Editorial Committee
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eFloras.org
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Habitat

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Sphagnous bogs, poor fens, acid seeps, shores of glacial lakes, streams, muskegs, or floating bog mats; 0--500m.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Synonym

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Xyris flexuosa Muhlenberg. var. pusilla A. Gray, Manual ed. 5, 548. 1867; X. papillosa Fassett
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cc-by-nc-sa-3.0
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 22 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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Comprehensive Description

provided by North American Flora
Xyris montana Ries, Bull. Torrey Club 19: 38. 1892
Xyris flexuosa var. pusilla A. Gray, Man. ed. 5. 548. 1867.
Sparsely tufted; rhizome elongate, ascending; leaves linear, 4-10 (-15) cm. long, 1.5-2 mm. broad, somewhat obtuse, smooth ; sheath occupying one third to one half the length of the leaf, pale-tawny, opaque, somewhat dilated at base; peduncles 15-30 (-40) cm. tall, 0.8-1 mm. broad, somewhat compressed and bicostate above, smooth, the peduncular sheath nearly equaling the leaves; spike rather few-flowered, ellipsoid or obovoid, 5-8 (-10) mm. long, 3-4.5 mm. thick, the outer barren bracts broadly ovate, about 3 mm. long, nearly rounded at the apex, the flowering bracts broadly obovate, 4.5-5.5 mm. long, about 4 mm. broad, entire or nearly so, chestnut-colored, somewhat shining, with a lanceolate often rather indistinct dorsal area 1-1.5 mm. long; lateral sepals lanceolate-linear, about 4.5 mm. long, 0.5-0.7 mm broad, acute at the apex; keel very narrow, sparsely lacerate-dentate above or nearly entire; seeds fusiform, 0.6-0.7 mm. long.
type LOCALITY: Pocono Mountain. Pennsylvania.
Distribution: Newfoundland to Michigan, Pennslvania, and New Jersey.
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bibliographic citation
Albert Charles Smith, Harold Norman Moldenke, Edward Johnston Alexander. 1937. XYRIDALES. North American flora. vol 19(1). New York Botanical Garden, New York, NY
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North American Flora

Xyris montana

provided by wikipedia EN

Xyris montana, the northern yelloweyed grass,[3] is a North American species of flowering plants in the yellow-eyed-grass family. It grows in eastern and central Canada (from Ontario to Newfoundland) and in the northeastern and north-central United States (from Minnesota to New England and New Jersey).[4][5]

Xyris montana is a perennial herb up to 30 cm (12 inches) tall with long, narrow leaves up to 15 cm (6 inches) long but less than 3 mm (0.12 inches) wide.[5][6][7]

References

  1. ^ "Xyris montana". Tropicos. Missouri Botanical Garden.
  2. ^ "Xyris montana". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew – via The Plant List.
  3. ^ USDA, NRCS (n.d.). "Xyris montana". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 16 September 2015.
  4. ^ "Xyris montana". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.
  5. ^ a b Kral, Robert (2000). "Xyris montana". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 22. New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  6. ^ Ries, Heinrich 1892. Bulletin of the Torrey Botanical Club 19(2): 38
  7. ^ Minnesota Department of Natural Resources

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wikipedia EN

Xyris montana: Brief Summary

provided by wikipedia EN

Xyris montana, the northern yelloweyed grass, is a North American species of flowering plants in the yellow-eyed-grass family. It grows in eastern and central Canada (from Ontario to Newfoundland) and in the northeastern and north-central United States (from Minnesota to New England and New Jersey).

Xyris montana is a perennial herb up to 30 cm (12 inches) tall with long, narrow leaves up to 15 cm (6 inches) long but less than 3 mm (0.12 inches) wide.

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