Carex meadii (111.Mead's sack sedge) 674 -- elongated, sl, bracts; Paniceae;

Carex michauxiana (198.Michaux's sack sedge) 685 -- garlic, unruly; Folliculatae; see C folliculata; bogs & wet meadows

Carex mitchelliana (187.Mitchell's sack sedge) 684 -- Cryptocarpae; not nodding; sac granular-papillate; see C gynandra; swamp forests & wet thickets & meadows

Carex muehlenbergii (29.Muehlenberg's sack sedge) 665 -- end cluster; Bracteosae

Carex muricata (22.sack sedge) 665 -- end cluster; Bracteosae

Carex nigra (193.black sack sedge) 685 -- 2 stigmas; Acutae

Carex nigromarginata (96.black-margined sack sedge) 672 -- end cluster; Montaneae;

Carex normalis (78.right-angled sack sedge) 670 -- ovales; open woods & meadows

Carex novae-angliae (93.New England sack sedge) 672 -- end cluster; Montaneae;

Carex oligocarpa (134.few-fruited sack sedge) 677 -- end cluster w/ bract; Oligocarpae;

Carex oligosperma (213.few-seeded sack sedge) 687 -- 2; Ovales; teeth well-dev; cylindrical; achene punching bag

Carex pallescens (158.pale sack sedge) 680 --

Carex panicea (110.millet-like sack sedge) 674 -- elongated, sl, bracts; Paniceae;

Carex pauciflora (3.few-flowered sack sedge) 660 -- spike 1 on ea stem

Carex paupercula (179.stunted sack sedge) 683 --

Carex peckii (94.Peck's sack sedge) 672 -- end cluster; Montaneae;

Carex pedunculata (104.peduncled sack sedge) 673 --

Carex pellita (168.sack sedge) 681 -- Hirtae; sac densely pubescent, football-like; wet meadows, shallow water

Carex pensylvanica (98.Pennsylvania sack sedge) 672 -- end cluster; Montaneae;

Carex plantaginea (125.plantain sack sedge) 676 -- Laxiflorae; sac sharply trigonous; plants purple at base; rich, moist woods

Carex platyphylla (127.broad-leaved sack sedge) 676 -- Laxiflorae; sac sharply trigonous; woods

Carex polymorpha (115.many formed sack sedge) 674 -- elongated, sl, bracts; Paniceae; dry open woods

Carex praegracilis (12.freeway sack sedge) 662

Carex prairea (41.prairie sack sedge) 666 --

Carex prasina (138.leek-green sack sedge) 678 -- 3; teeth not well-dev; pointed beak; Gracillimae

Carex praticola (61.prairie-dweller sack sedge) 668 -- ovales; meadow