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Carex gynandra Schwein. Nodding sedge Similar species | |||
Carex arctata |
Carex crinita |
You are here Carex gynandra |
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| Common Name | |||
| Plant | Occurring in dense tufts, plants are up to 3′ (1 m) high. | Up to 4½′ (1.4 m) tall. Stems have a triangular cross-section. Basal leaf sheaths are smooth. | Up to 4½′ (1.4 m) tall. Stems are rough-textured, with a triangular cross-section. Basal leaf sheaths are rough. |
| Leaves | Basal or nearly so. Grasslike leaves are ⅛–⅜″ (3–10 mm) wide. At the base, they are encased in a sheath that is pink to reddish purple. Younger leaves have an ‘M’ or ‘W’-shaped cross-section. | M or U-shaped in cross-section, ⅛–⅜″ (4–10 mm) wide. | ⅛–⅜″ (4–10 mm) wide, U-shaped. |
| Flowers | Male (staminate) and female (pistillate) spikes are separate. The topmost spike is unisexual, staminate, ⅞–3 ⨉ 1/16–⅛″ (2.5–8 cm ⨉ 3–4 mm). 2-5 pistillate (also called carpellate) spikes appear lower on the stem. Each spike is up to 3″ (8 cm) long, and slender. Young spikes point upward, but they droop with age. | Drooping narrow cylindrical heads up to 4½″ (11 cm) long and ¼″ (7 mm) in diameter. Carpellate scales are pale, truncate to notched at apex, with rough-textured awns. 1-3 staminate spikes per stem. | 2-5 carpellate narrow, cylindrical spikes per stem. Each spike is ⅞–4″ (2.4–10 cm) long, ⅛–¼″ (3–9 mm) in diameter. Scales on the carpels are pale- to copper brown. There are 1-3 staminate spikes per stem. |
| Fruit | Achenes are ~1/16″ long ⨉ 1/32–1/16″ wide (1.7–2.6 ⨉ 0.8–1.7 mm). | Perigynia are spreading, slightly inflated obovoid (widest above the middle and truncate), 1/16–⅛″ (2–4 mm) long. | Perigynia are oval-shaped, tapering to a small beak. |
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| Habitats | Rich, damp forested areas. | Bottomland prairies, moist upland prairies, margins of bodies of water, spring branches, fens. | Marshes, wet forests, swamps, seeps, and roadside ditches. Perhaps a little more weedy and abundant in acidic soils than C. crinita. |

Carex gynandra description by Thomas H. Kent, not updated.
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