Search results
- Flora of North America Association Herbs, to 6 dm. Leaves emersed, rarely floating, petiolate; blade ovate to elliptic, to 15 × 10 cm. Inflorescences to 15 KB (445 words) - 00:55, 30 July 2020
- on page 145. Roots (1–) 2–21 per frond, abaxial surface at node. Fronds floating (only turions sink to bottom), 2–10, coherent in groups, each obovate-circular5 KB (278 words) - 01:00, 30 July 2020
- green or with margins of bright crimson or whole plants dark red, free-floating or forming multilayer mat to 4 cm thick under good conditions; plants infrequently4 KB (350 words) - 00:32, 30 July 2020
- terminal segments 3-200, linear to slightly spatulate, to 1.8 mm wide. Floating leaves: blade 0.6-3 cm × 1-4 mm, margins entire or notched to sagittate6 KB (621 words) - 08:34, 30 July 2020
- pointed; sheath not winged. Stipes white, small, often decaying. Fronds floating, 1 or 2–few, coherent in groups, obovate, flat to thickish (but not gibbous)5 KB (419 words) - 00:55, 30 July 2020
- rounded; sheath not winged. Stipes white, small, often decaying. Fronds floating, 1 or 2–few, coherent in groups, obovate, scarcely gibbous, flat, 1–4 mm6 KB (471 words) - 00:57, 30 July 2020
- pointed; sheath not winged. Stipes white, small, often decaying. Fronds floating or (rarely) submersed, 1 or 2–few, coherent in groups, ovate to lanceolate5 KB (413 words) - 00:57, 30 July 2020
- 1–2.5 times as long as wide). Stipes small, white, often decaying. Fronds floating, 1 or 2–few, coherent in groups, ovatelanceolate, flat, 1–6 mm, 1–3 times6 KB (415 words) - 01:00, 30 July 2020
- 2–3 times as long as wide). Stipes white, small, often decaying. Fronds floating, 1 or 2–few, coherent in groups, ovate-obovate, flat, 1–4 mm, 1–1.7 times5 KB (401 words) - 00:55, 30 July 2020
- rounded; sheath not winged. Stipes white, small, often decaying. Fronds floating, 1 or 2–5 or more, coherent in groups, ovate, scarcely gibbous, flat, 1–86 KB (478 words) - 00:51, 30 July 2020
- rounded; sheath not winged. Stipes white, small, often decaying. Fronds floating, 1 or 2–5 or more, coherent in groups, obovate, flat or gibbous, 1–3.55 KB (409 words) - 00:53, 30 July 2020
- remainder of blade. Inflorescences racemes or panicles, of 1–15 whorls, floating or emersed, 1.5–28 × 1.5–15 cm; peduncles 15–47 cm; bracts distinct or8 KB (514 words) - 00:55, 30 July 2020
- rhizomatous or cespitose; synoecious. Culms 20-150 cm (occasionally longer in floating mats), erect or decumbent, often rooting at the nodes, branched or unbranched9 KB (694 words) - 02:58, 30 July 2020
- viscid-aromatic, pilose, sometimes sparsely so, producing long, juvenile, floating basal leaves. Culms 3-35 cm, erect, ascending, or decumbent, sometimes8 KB (735 words) - 04:50, 30 July 2020
- vertical. Leaves appearing before flowers, several, emergent or sometimes floating, clustered; petiole longer than blade; blade abaxially paler green, adaxially5 KB (356 words) - 00:54, 30 July 2020
- stems rooted in substrate, unbranched, short. Leaves basal, submersed [floating], petiolate; blade lanceolate to reniform [linear], base cuneate to cordate6 KB (382 words) - 00:55, 30 July 2020
- 10–90 cm; glands absent. Turions absent. Leaves both submersed and floating or floating absent, spirally arranged. Submersed leaves sessile, lax; stipules9 KB (718 words) - 00:58, 30 July 2020
- cm; nodal glands absent. Turions absent. Leaves both submersed and floating or floating absent, spirally arranged. Submersed leaves petiolate, lax; stipules8 KB (592 words) - 00:57, 30 July 2020
- 200 cm; nodal glands absent. Turions absent. Leaves submersed and floating or floating absent, spirally arranged. Submersed leaves sessile, lax; stipules9 KB (650 words) - 00:58, 30 July 2020
- nodal glands absent. Turions absent. Leaves both submersed and floating or the floating absent, spirally arranged. Submersed leaves sessile or petiolate8 KB (628 words) - 00:51, 30 July 2020