Cyperaceae taxon details
Carex laxiflora Lam.
1677485 (urn:lsid:marinespecies.org:taxname:1677485)
accepted
Species
- Variety Carex laxiflora var. laxiflora Lam.
- Forma Carex laxiflora f. striatula (Michx.) Kük. accepted as Carex striatula Michx.
- Forma Carex laxiflora f. varians (L.H.Bailey) Kük. accepted as Carex leptonervia (Fernald) Fernald
- Variety Carex laxiflora var. angustifolia (Dewey) Dewey accepted as Carex striatula Michx.
- Variety Carex laxiflora var. blanda (Dewey) Boott accepted as Carex blanda Dewey
- Variety Carex laxiflora var. divaricata L.H.Bailey accepted as Carex laxiflora var. laxiflora Lam.
- Variety Carex laxiflora var. gracillima Boott accepted as Carex gracilescens Steud.
- Variety Carex laxiflora var. heterosperma Britton, Sterns & Poggenb. accepted as Carex laxiflora var. laxiflora Lam.
- Variety Carex laxiflora var. intermedia Boott accepted as Carex laxiflora var. laxiflora Lam.
- Variety Carex laxiflora var. latifolia Boott accepted as Carex albursina E.Sheld.
- Variety Carex laxiflora var. leptonervia Fernald accepted as Carex leptonervia (Fernald) Fernald
- Variety Carex laxiflora var. major Boott accepted as Carex laxiflora var. laxiflora Lam.
- Variety Carex laxiflora var. michauxii L.H.Bailey accepted as Carex striatula Michx.
- Variety Carex laxiflora var. minor Boott accepted as Carex laxiflora var. laxiflora Lam.
- Variety Carex laxiflora var. mutica Torr. accepted as Carex flaccosperma Dewey
- Variety Carex laxiflora var. ormostachya (Wiegand) Gleason accepted as Carex ormostachya Wiegand
- Variety Carex laxiflora var. patulifolia (Dewey ex Alph.Wood) J.Carey accepted as Carex laxiflora var. laxiflora Lam.
- Variety Carex laxiflora var. plantaginea Olney accepted as Carex hendersonii L.H.Bailey
- Variety Carex laxiflora var. plantaginea Boott accepted as Carex laxiflora var. laxiflora Lam.
- Variety Carex laxiflora var. purpurifera (Mack.) Gleason accepted as Carex purpurifera Mack.
- Variety Carex laxiflora var. serrulata F.J.Herm. accepted as Carex laxiflora var. laxiflora Lam.
- Variety Carex laxiflora var. striatula (Michx.) Chapm. accepted as Carex striatula Michx.
- Variety Carex laxiflora var. styloflexa (Buckley) Boott accepted as Carex styloflexa Buckley
- Variety Carex laxiflora var. varians L.H.Bailey accepted as Carex leptonervia (Fernald) Fernald
terrestrial
Lamarck, J. B. P. (1792). <em>Encyclopédie méthodique. Botanique.</em> 3(2)., available online at https://www.biodiversitylibrary.org/page/721828#page/3/mode/1up
page(s): 392 [details]
page(s): 392 [details]
Description Culms densely tufted, lateral or central, ascending or lax to decumbent, 39–47 cm × 0.8–2 mm. Leaves: basal sheaths...
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Encycl. 3: 378 1792 to Encycl. [J. Lamarck & al.] 3(2): 392. 1792...
Description Culms densely tufted, lateral or central, ascending or lax to decumbent, 39–47 cm × 0.8–2 mm. Leaves: basal sheaths light brown; sheaths 6–22 mm; blades ascending, midrib and 2 lateral veins developed, occasionally slightly corrugated, 19–25 cm × 5–26 mm, blades of overwintering leaves smooth or, rarely, sparsely papillose abaxially. Inflorescences: peduncles of proximal spikes erect, 0–3.4 cm, of lateral spikes 1.4–3.3(–5.3) times as long as spikes they subtend; of terminal spikes 1–2.2 cm. Bracts 7.2–17.5 cm × 2–8 mm, bract blade of distal lateral spikes linear, narrower than spikes, widest bract blade of distalmost lateral spike 0.5–3.4 mm wide. Spikes (3–)4 per culm; lateral spikes 9–33 × 3.2–4 mm; terminal spike linear to clavate, 23–24(–34) × 1.5–3 mm. Pistillate scales 2.5–3 × 1.2–1.5 mm, apex acute or apiculate. Staminate scales 3–3.5 × 1–1.5 mm, oblong-ovate, margins white-hyaline or brownish, apex obtuse or acute. Anthers 2.6–3 mm. Perigynia 3–20 per spike, usually separate, ratio of longer lateral spike length to perigynia number 1.9–3.4, ascending, conspicuously (22–)25–32-veined, (2.6–)3.2–4.1(–4.6) × 1.2–1.6 mm; beak straight, 0.5–1.4 mm. Achenes broadly ellipsoid, 1.8–2.2(–3.4) × 1–1.4 mm. 2n = 40. [details]
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Encycl. 3: 378 1792 to Encycl. [J. Lamarck & al.] 3(2): 392. 1792...
Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Encycl. 3: 378 1792 to Encycl. [J. Lamarck & al.] 3(2): 392. 1792 [13 Feb 1792] , information provided by Alan E. on email Oct. 12 2020 More details could be found in [details]
Cyperaceae Working Group. (2025). [see How to cite]. Global Cyperaceae Database. Carex laxiflora Lam.. Accessed at: https://www.cyperaceae.org/aphia.php?p=taxdetails&id=1677485 on 2025-09-13
Date
action
by
2024-12-10 11:47:54Z
unchecked
db_admin
The webpage text is licensed under a Creative Commons
Attribution 4.0 License
Nomenclature
original description
Lamarck, J. B. P. (1792). <em>Encyclopédie méthodique. Botanique.</em> 3(2)., available online at https://www.biodiversitylibrary.org/page/721828#page/3/mode/1up
page(s): 392 [details]
basis of record Plants of the World Online (POWO). , available online at https://powo.science.kew.org/ [details]
page(s): 392 [details]
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
Isotype P 00306082, geounit Florida [details]
From editor or global species database
Description Culms densely tufted, lateral or central, ascending or lax to decumbent, 39–47 cm × 0.8–2 mm. Leaves: basal sheaths light brown; sheaths 6–22 mm; blades ascending, midrib and 2 lateral veins developed, occasionally slightly corrugated, 19–25 cm × 5–26 mm, blades of overwintering leaves smooth or, rarely, sparsely papillose abaxially. Inflorescences: peduncles of proximal spikes erect, 0–3.4 cm, of lateral spikes 1.4–3.3(–5.3) times as long as spikes they subtend; of terminal spikes 1–2.2 cm. Bracts 7.2–17.5 cm × 2–8 mm, bract blade of distal lateral spikes linear, narrower than spikes, widest bract blade of distalmost lateral spike 0.5–3.4 mm wide. Spikes (3–)4 per culm; lateral spikes 9–33 × 3.2–4 mm; terminal spike linear to clavate, 23–24(–34) × 1.5–3 mm. Pistillate scales 2.5–3 × 1.2–1.5 mm, apex acute or apiculate. Staminate scales 3–3.5 × 1–1.5 mm, oblong-ovate, margins white-hyaline or brownish, apex obtuse or acute. Anthers 2.6–3 mm. Perigynia 3–20 per spike, usually separate, ratio of longer lateral spike length to perigynia number 1.9–3.4, ascending, conspicuously (22–)25–32-veined, (2.6–)3.2–4.1(–4.6) × 1.2–1.6 mm; beak straight, 0.5–1.4 mm. Achenes broadly ellipsoid, 1.8–2.2(–3.4) × 1–1.4 mm. 2n = 40. [details]Taxonomic remark Source in seed data: wcs Updated namepublishedIn from Encycl. 3: 378 1792 to Encycl. [J. Lamarck & al.] 3(2): 392. 1792 [13 Feb 1792] , information provided by Alan E. on email Oct. 12 2020 More details could be found in [details]
To Biodiversity Heritage Library (330 publications)
To European Nucleotide Archive, ENA (Carex laxiflora)
To International Plant Names Index (IPNI)
To Plants of the World Online
To US Herbarium (Carex laxiflora US3764113 type 1)
To European Nucleotide Archive, ENA (Carex laxiflora)
To International Plant Names Index (IPNI)
To Plants of the World Online
To US Herbarium (Carex laxiflora US3764113 type 1)
From editor or global species database
Hosted externally
