| 107a | (94) | Plant herbaceous or woody, leaves not succulent, or at most somewhat fleshy, but width of leaf is more than 5 times leaf thickness | [108] | ||
| 107b | Plant succulent: leaf thickness and width similar, or width only 2 to 5 times leaf thickness; { Leaf veins difficult to discern. Herbaceous to slightly woody plants growing near or along the shore of salt-water features | [115] | |||
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| 108a | (107) | True stem lacking. Leaf round and peltate (petiole attached well in from edge) and with prickly petiole (leaf stem). { Decorative ponds. Lotus ~ Family NYMPHAEACEAE Nelumbo nucifera Gaertn.
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| 108b | Stem present, although may be hidden below the water or sediment. Leaf peltate or not, but ovate, arrow-, or heart- shaped and petiole not at all prickly | [109] | |||
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| 109a | (108) | Stem an underground tuber or corm (short, thick and growing more or less vertically). Leaf triangular, heart-shaped, or arrow-shaped, somewhat to very lobed at base | [110] | ||
| 109b | Stem otherwise, more conspicuous above ground and not thickened and starchy, usually narrow and branching. Leaf variable; may be arrow-shaped. | [117] | |||
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| 110a | (109) |  Leaf erect and distinctly sagittate (arrow-shaped), with the two downward pointing lobes about as long as the terminal lobe. Flowers with three white petals, in whorls on a stalk (raceme) up to 50 cm tall. Arrowhead~ Family ALISMATACEAE Sagittaria latifolia Willd.
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| 110b | Leaf erect or deflexed (tips pointing up or down), heart-shaped, with lateral lobes smaller than terminal lobe; leaves peltate or not, dull or shiney | [111] | |||
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| 111a | (110) |
Leaf somewhat erect and shiney green, linear to ovate and up to 10 cm long; not peltate. Flower with six violet petals; flowers few to numerous on a short stalk (raceme) up to 4 cm tall. Cordate monochoria~ Family PONTIDERIACEAE Monochoria vaginalis (N.L. Burm) K. Presl.
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| 111b | Leaves heart-shaped and usually well over 10 cm long; leaves peltate or not, but arising from the top of a corm on long petioles which are clasping near the base. Each flower solitary on a stalk, consisting of a conspicuous bract (spathe) partly or completely surrounding a central spike (spadex). Aroids like taro or kalo and `ape ~ Family ARACEAE |
[112] | |||
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| 112a | (111) | Leaf distinctly peltate (petiole attaches to the blade well in from leaf margin), with a whitish powdery surface (glaucous) on underside and light to dark green, often with a pinkish or rose spot on upper surface above petiolar attachment. Kalo, taro [OBL][POL] Colocasia esculenta (L.) Schott
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| 112b | Leaf not or hardly at all peltate (less than 1 cm), with or without whitish surface(s) | [113] | |||
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| 113a | (112) |  Leaves mostly erect to arching, upward-pointing, shiney on upper and lower surfaces, never glaucous. Plant becoming quite large. `Ape [FAC-][RIP]Alocasia macrorrhizos (L.) Schott
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| 113b |  Leaves mostly spreading or deflexed, blade set at an angle to the petiole, apex usually downward-pointing; blades dull dark green and lower surface glaucous. Common `ape [NI][RIP]Xanthosoma roseum Schott
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