Cyperaceae taxon details
Eriophorum ×churchillianum Lepage
1680629 (urn:lsid:marinespecies.org:taxname:1680629)
accepted
Species
Eriophorum churchillianum Lepage · alternative representation
terrestrial
(1957). Bulletin de Recherches, Observations et Decouvertes se Rapportant a l'Histoire Naturelle du Canada. <em>Naturaliste Canadien.</em> 84(2).
page(s): 39 [details] Available for editors
[request]
page(s): 39 [details] Available for editors
[request]
Holotype , geounit Alaska
Holotype, geounit Alaska [details]
Description Perennial, rhizomatous herb, forming dense tus-socks (Fig. 1A). Roots up to 1 mm wide, brownish. Culm (4-)11-25 cm long,...
Taxonomic remark E. angustifolium Honek. ssp. scabriusculum Hult. x E. vaginatum
L. ssp. spissum (Fern.) Hutt.
Taxonomic remark Source in seed data: tro Update namepublishedIn from Naturaliste Canad. 84: 39, f. 2 1957 to Naturaliste Canad. 84: 39...
Description Perennial, rhizomatous herb, forming dense tus-socks (Fig. 1A). Roots up to 1 mm wide, brownish. Culm (4-)11-25 cm long, 0.5-0.9 mm wide, erect,terete with 8 to 10 ribs, rounded-trigonous below the inflorescence, scabrous distally. Leaves stiff and erect, shorter than longest culms; sheaths brown; blades (2-)5-11 cm long, 0.5-0.7 mm wide, green, acute, margins scabrous, upper part asymmetrical (surface of adaxial side is reduced to rib toward leaf tip). Ligule membranous, brown. Inflorescence of a single pseudolateral spikelet, 4-6 x 2-3 mm. Involucral bracts 2; lower bract pseudo-terminal, 13-19 mm long, scabrous, with an awn 10-18 mm long; the upper bract 4-6 mm long, glumiform, scabrous, with an awn 1-3 mm long.Glumes spirally arranged, brown, elliptical, glabrous; lower glumes 3-3.5 mm long, empty, obtuse; fruit-bearing glumes 3 or 4, 3-4 mm long, obtuse,sometimes bifid at tip. Flowers bisexual. Tepals 3+ 3, scale-like, shorter than achene; outer whorl of tepals 1-1.4 x 0.5-0.9 mm, pale, obtuse or bifid; inner whorl of tepals 0.5-1 x 0.2-0.5 mm, irregularly lobed, pale, often with a central, red-dish, acute tip. Stamens 3; anthers about 1 mm long, opening with 2 longitudinal slits, red-tinged; filaments pale brown. Ovary 3 carpellate; stigma branches 3, papillose. Achene 1.5-1.7 x 1-1.3 mm, obovate, trigonous, brown, glabrous [details]
Taxonomic remark E. angustifolium Honek. ssp. scabriusculum Hult. x E. vaginatum
L. ssp. spissum (Fern.) Hutt.
Taxonomic remark E. angustifolium Honek. ssp. scabriusculum Hult. x E. vaginatum
L. ssp. spissum (Fern.) Hutt. [details]
L. ssp. spissum (Fern.) Hutt. [details]
Taxonomic remark Source in seed data: tro Update namepublishedIn from Naturaliste Canad. 84: 39, f. 2 1957 to Naturaliste Canad. 84: 39...
Taxonomic remark Source in seed data: tro Update namepublishedIn from Naturaliste Canad. 84: 39, f. 2 1957 to Naturaliste Canad. 84: 39 (1957), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Eriophorum ×churchillianum Lepage. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1680629 on 2025-09-13
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2024-12-10 11:47:54Z
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Nomenclature
original description
(1957). Bulletin de Recherches, Observations et Decouvertes se Rapportant a l'Histoire Naturelle du Canada. <em>Naturaliste Canadien.</em> 84(2).
page(s): 39 [details] Available for editors [request]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 39 [details] Available for editors
[request]basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
Present Inaccurate Introduced: alien Containing type locality
Holotype, geounit Alaska [details]
From editor or global species database
Description Perennial, rhizomatous herb, forming dense tus-socks (Fig. 1A). Roots up to 1 mm wide, brownish. Culm (4-)11-25 cm long, 0.5-0.9 mm wide, erect,terete with 8 to 10 ribs, rounded-trigonous below the inflorescence, scabrous distally. Leaves stiff and erect, shorter than longest culms; sheaths brown; blades (2-)5-11 cm long, 0.5-0.7 mm wide, green, acute, margins scabrous, upper part asymmetrical (surface of adaxial side is reduced to rib toward leaf tip). Ligule membranous, brown. Inflorescence of a single pseudolateral spikelet, 4-6 x 2-3 mm. Involucral bracts 2; lower bract pseudo-terminal, 13-19 mm long, scabrous, with an awn 10-18 mm long; the upper bract 4-6 mm long, glumiform, scabrous, with an awn 1-3 mm long.Glumes spirally arranged, brown, elliptical, glabrous; lower glumes 3-3.5 mm long, empty, obtuse; fruit-bearing glumes 3 or 4, 3-4 mm long, obtuse,sometimes bifid at tip. Flowers bisexual. Tepals 3+ 3, scale-like, shorter than achene; outer whorl of tepals 1-1.4 x 0.5-0.9 mm, pale, obtuse or bifid; inner whorl of tepals 0.5-1 x 0.2-0.5 mm, irregularly lobed, pale, often with a central, red-dish, acute tip. Stamens 3; anthers about 1 mm long, opening with 2 longitudinal slits, red-tinged; filaments pale brown. Ovary 3 carpellate; stigma branches 3, papillose. Achene 1.5-1.7 x 1-1.3 mm, obovate, trigonous, brown, glabrous [details]Taxonomic remark E. angustifolium Honek. ssp. scabriusculum Hult. x E. vaginatum
L. ssp. spissum (Fern.) Hutt. [details]
Taxonomic remark Source in seed data: tro Update namepublishedIn from Naturaliste Canad. 84: 39, f. 2 1957 to Naturaliste Canad. 84: 39 (1957), information provided by Alan E. on email Jun. 07 2021 More details could be found in [details]
