Carex flava L.
  • Sp. Pl. : 975 (1753)
  • Yellow sedge, carex jaune

Cite taxon page as 'WFO (2023): Carex flava L. Published on the Internet; Accessed on: 05 Jun 2023'

General Information

Plants cespitose. Culms straight, 10–75 cm. Leaves of flowering stems shorter than to slightly exceeding culms, 5–30 cm × 1.6–4.7(–5.8) mm; ligules on distal cauline leaves truncate or rounded. Inflorescences: peduncles of terminal spikes 0.4–5(–9) mm; bracts to 18.5 cm × (0.7–)2–4.5 mm; inner band of sheaths truncate or concave. Spikes: proximal pistillate spikes (1–)2–5, contiguous or approximate, globose to elliptic, 8–22 × 7.5–12.7 mm; terminal staminate spikes sessile or pedunculate, 9–22 × 1.1–3 mm. Scales: pistillate scales reddish brown, 2.3–3.9 × 0.9–1.4 mm; staminate scales reddish brown, ovate, margins narrowly whitish hyaline, apex obtuse. Anthers 1–2.1 mm. Perigynia reflexed, bright yellow at maturity, 4–6.3 × 1–1.9 mm, apex gradually narrowed; beak 1.3–2.7 mm, forming angle of (15–)26–72° with body, scabrous. Achenes 1.3–1.7 × 0.9–1.2 mm. 2n = 60.

  • Provided by: [D].Flora of North America @
    • Source: [
    • 1
    • ]. 

    Tufted, 1–8 dm; lvs flat, mostly 3–5.5 mm wide, the plants appearing leafier than no. 153 [Carex viridula Michx.]; terminal spike sessile or short-pedunculate, slender, staminate or with some distal perigynia, 6–24 mm; lateral spikes 2–5, pistillate, short and stout, 6–17 mm, all sessile or short-pedunculate and crowded at the summit, or 1 or 2 of the lower ± remote and more evidently pedunculate; bracts sheathless or nearly so (except those subtending any remote spikes), one or more of them with an elongate blade much surpassing the infl; pistillate scales strongly tinged with coppery brown, thus conspicuous in the spike; perigynia 3.7–6.2 mm, most of them spreading and evidently falcate-recurved, relatively slender and gradually tapering to the poorly defined, distally rough-margined beak, this 1.4–2.3 mm, set at a ± divergent angle to the body; perigynium-body strongly yellowish toward the base, usually more greenish (or eventually brownish) distally, prominently several-nerved on the upper surface, more obscurely so on the lower, achene hardly larger than in no. 153, a larger part of the perigynium thus empty; 2n=60, 64, 68, 70. Bogs and wet meadows in calcareous districts; circumboreal, s. in Amer. to N.J., Ind., Ida., and B.C. (C. laxior)

  • Provided by: [B].Manual of Vascular Plants of Northeastern US and Canada
    • Source: [
    • 3
    • ]. 


    (5–)20–60 cm hoch, steif aufrecht. Blätter 3–5 mm breit, flach, gelbgrün. Blütenstand ca. 3 cm lang, mit 2–4 dicht stehenden, 1–1,5 cm langen und gut 1 cm dicken weiblichen Ähren. Stiel der männlichen Ähre die weiblichen nicht überragend.

  • Provided by: [C].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 2
    • ]. 


    5–8. Schlammige Böden, Flachmoore, kollin-subalpin(-alpin). CH.

  • Provided by: [C].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 2
    • ]. 


    Other Local Names

    Yellow sedge, carex jaune
    Gewöhnliche Gelbe SeggeGermanCH
    Laiche jauneFrenchCH


     Information From

    World Flora Online Data. 2021.
    • A CC0 1.0 Universal (CC0 1.0).
    Manual of Vascular Plants of Northeastern US and Canada
    Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
    • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Flora Helvetica – Illustrierte Flora der Schweiz
    Flora Helvetica – Illustrierte Flora der Schweiz, Konrad Lauber, Gerhart Wagner, Andreas Gygax. Haupt Verlag 2018.
    • C All Rights Reserved
    Flora of North America @
    'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • D Flora of North America Association
    World Flora Online Consortium
    World Flora Online Data. 2017.
    • E CC0 1.0 Universal (CC0 1.0).