10 pages matching flowers in heads in this book
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achene alkali lakes AQUATIC PLANTS basal base of leaf Bladderwort branched clasping stem Curled Pondweed cymes Duckweed easily pulled elongate Emergent or marsh Fair-Good flattened Floating leaves flowers blue flowers green flowers in heads flowers pink flowers white flowers yellow fruits Grass GROUP hairs inch long inch wide inflorescence irregularly toothed JUNCUS NODOSUS leaf axils leaf base Leaf blade Leaf margin Leaf segments Leaf sheath leaf stalk leaflets leafy Leaves less leaves usually leaves wider lens ligule lobes long as wide lower leaves marsh plants midrib Minnesota Narrowleaf NELUMBO LUTEA nerves one-eighth inch one-fourth inch palustris panicle Perennial petiole plant mass Plant or plant pondweed--Potamogeton Potamogeton racemes reclining reddish ribbon-like roots round in cross running rootstalks Scirpus SClRPUS sessile Slight-Fair spike Spikelets stipular Stipules Submersed leaves Swamp teeth thread-like three-eighths inch tuft TYPHA umbels veins Waterlily White Waterlily