Cyperaceae taxon details
Carex gynodynama Olney
1677843 (urn:lsid:marinespecies.org:taxname:1677843)
accepted
Species
Carex blankinshipii Fernald · unaccepted
terrestrial
Olney, S. T. (1868). Carices Novae. <em>Proceedings of the American Academy of Arts and Sciences.</em> 7: 393-396., available online at https://www.biodiversitylibrary.org/page/3068732
page(s): 394 [details]
page(s): 394 [details]
Holotype G 00191548, geounit California
Holotype G 00191548, geounit California [details]
Description Plants densely cespitose. Culms reddish brown to dark maroon at base; flowering stems 20–70 cm, much longer than leaves at...
Description Plants densely cespitose. Culms reddish brown to dark maroon at base; flowering stems 20–70 cm, much longer than leaves at maturity, 1–1.7 mm thick, glabrous or sparsely pilose. Leaves: basal sheaths reddish brown, bladeless, pilose; others grading from dark red to green on back, tan-hyaline on front, reddish brown dotted and usually pubescent at apex; blades flat, 3–12 mm wide, usually pilose, more densely so abaxially, margins ciliate. Inflorescences: peduncles of lateral spikes, when present, less than 10 mm, often pubescent; proximal bracts usually shorter than inflorescence; sheaths 5–50 mm; blades 1.2–2 mm wide. Lateral spikes 2–5, 1 per node, usually crowded toward apex and overlapping staminate spike, erect, sessile or pedunculate, pistillate with 20–40 perigynia attached less than 1 mm apart, cylindric, 12–40 × 4–11 mm. Terminal spike staminate, rarely gynecandrous, sessile or very short-pedunculate, 8–30 × 2–5.5 mm. Pistillate scales reddish brown with narrow white-hyaline margins and green midrib, broadly ovate, shorter than mature perigynia, apex obtuse to short-cuspidate, often pubescent on midrib and awn, ciliate distally. Perigynia pale green, blotched with dark maroon at base, dark maroon-brown distally, 2-ribbed and finely veined with to 20 veins, most conspicuous near base, loosely enveloping achene, ellipsoid, 3.7–5.3 × 1–2.2 mm, membranous, base acute, apex narrowing to beak, body covered with long, appressed to spreading hairs; beak bidentate, 1 mm. Achenes substipitate, 2–2.6 × 1.2–1.7 mm. 2n = 50, 52. [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex gynodynama Olney. Accessed at: https://cyperaceae.org/aphia.php?p=taxdetails&id=1677843 on 2026-06-05
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2024-12-10 11:47:54Z
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Nomenclature
original description
Olney, S. T. (1868). Carices Novae. <em>Proceedings of the American Academy of Arts and Sciences.</em> 7: 393-396., available online at https://www.biodiversitylibrary.org/page/3068732
page(s): 394 [details]
page(s): 394 [details]
Other
additional source
Ball, P.W.; Reznicek, A.A.; Murray, D.F. (2002). Magnoliophyta: Commelinidae (in part): Cyperaceae. In: Flora of North America. Vol. 23. Oxford University Press, New York., available online at http://floranorthamerica.org/Cyperaceae [details] Available for editors 
[request]
additional source Kükenthal, G. (1909). Cyperaceae-Caricoidae. <em>Das Pflanzenreich: regni vegetabilis conspectus.</em> 38, 4(20)., available online at https://www.biodiversitylibrary.org/page/31618144
page(s): 580 [details]
[request]additional source Kükenthal, G. (1909). Cyperaceae-Caricoidae. <em>Das Pflanzenreich: regni vegetabilis conspectus.</em> 38, 4(20)., available online at https://www.biodiversitylibrary.org/page/31618144
page(s): 580 [details]
Present Inaccurate Introduced: alien Containing type locality
Holotype G 00191548, geounit California [details]
From editor or global species database
Additional information Sporadic sterile hybrids between Carex gynodynama and C. mendocinensis are well documented. A reported hybrid with C. hendersonii needs further study to confirm parentage. [details]Description Plants densely cespitose. Culms reddish brown to dark maroon at base; flowering stems 20–70 cm, much longer than leaves at maturity, 1–1.7 mm thick, glabrous or sparsely pilose. Leaves: basal sheaths reddish brown, bladeless, pilose; others grading from dark red to green on back, tan-hyaline on front, reddish brown dotted and usually pubescent at apex; blades flat, 3–12 mm wide, usually pilose, more densely so abaxially, margins ciliate. Inflorescences: peduncles of lateral spikes, when present, less than 10 mm, often pubescent; proximal bracts usually shorter than inflorescence; sheaths 5–50 mm; blades 1.2–2 mm wide. Lateral spikes 2–5, 1 per node, usually crowded toward apex and overlapping staminate spike, erect, sessile or pedunculate, pistillate with 20–40 perigynia attached less than 1 mm apart, cylindric, 12–40 × 4–11 mm. Terminal spike staminate, rarely gynecandrous, sessile or very short-pedunculate, 8–30 × 2–5.5 mm. Pistillate scales reddish brown with narrow white-hyaline margins and green midrib, broadly ovate, shorter than mature perigynia, apex obtuse to short-cuspidate, often pubescent on midrib and awn, ciliate distally. Perigynia pale green, blotched with dark maroon at base, dark maroon-brown distally, 2-ribbed and finely veined with to 20 veins, most conspicuous near base, loosely enveloping achene, ellipsoid, 3.7–5.3 × 1–2.2 mm, membranous, base acute, apex narrowing to beak, body covered with long, appressed to spreading hairs; beak bidentate, 1 mm. Achenes substipitate, 2–2.6 × 1.2–1.7 mm. 2n = 50, 52. [details]
Ecology Fruiting late spring–early summer. Seeps, stream banks, roadside ditches, wet meadows and slopes, coastal prairies, mixed evergreen forest along the Pacific Coast; 0–600 m. [details]
To Biodiversity Heritage Library (19 publications)
To Biodiversity Heritage Library (2 publications) (from synonym Carex blankinshipii Fernald)
To European Nucleotide Archive, ENA (Carex gynodynama)
To Field Museum Herbarium (Carex gynodynama Olney F308854 isotype 1)
To GenBank (4 nucleotides; 1 proteins)
To Genève Herbarium (Carex gynodynama G00191546 type 1)
To Genève Herbarium (Carex gynodynama G00191547 type 1)
To Genève Herbarium (Carex gynodynama G00191547 type 2)
To Genève Herbarium (Carex gynodynama G00191547 type 3)
To Genève Herbarium (Carex gynodynama G00191548 type 1)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex blankinshipii Fernald)
To Plants of the World Online (from synonym Carex blankinshipii Fernald)
To Plants of the World Online
To US Herbarium (Carex gynodynama US28978 type 1)
To US Herbarium (Carex gynodynama US319267 type 1)
To Biodiversity Heritage Library (2 publications) (from synonym Carex blankinshipii Fernald)
To European Nucleotide Archive, ENA (Carex gynodynama)
To Field Museum Herbarium (Carex gynodynama Olney F308854 isotype 1)
To GenBank (4 nucleotides; 1 proteins)
To Genève Herbarium (Carex gynodynama G00191546 type 1)
To Genève Herbarium (Carex gynodynama G00191547 type 1)
To Genève Herbarium (Carex gynodynama G00191547 type 2)
To Genève Herbarium (Carex gynodynama G00191547 type 3)
To Genève Herbarium (Carex gynodynama G00191548 type 1)
To International Plant Names Index (IPNI)
To International Plant Names Index (IPNI) (from synonym Carex blankinshipii Fernald)
To Plants of the World Online (from synonym Carex blankinshipii Fernald)
To Plants of the World Online
To US Herbarium (Carex gynodynama US28978 type 1)
To US Herbarium (Carex gynodynama US319267 type 1)
From editor or global species database
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