NEBRASKA WILD-DUCK FOODS. 



63 



Distribution of Vegetation. 



SHORE PLANTS. 



Typical xcet-mendoic plants. 

 Arrow-grass (Triglochin maritmva).* 



Mature fruit. 

 Wild millet (Echinochloa crus-galli) .* 

 Switchgrass (Panicum virgatum).* 

 Cord-grass (SpaHina michauxiana) .* 

 Squirrel-tail (Hordeum jubatum).* 

 Satin grass (Muhlenhergia foliosa).* 

 Sedge (Cyperus speciosus).* Mature 



fruit. 

 Rush (Juncus torreyi).* 

 Rush {Juncus halUcus) * 

 . Richweed {Pilea pumila)* Immature 



fruit. 

 . Water smartweed (Polygonum amphi- 



Mum).* Flowers to mature fruit. 

 . Water pepper (Polygonum puncta- 

 tum).* 

 Heart's-ease (Polygonum pennsyJ/oanA- 

 cum).* Mature fruit. 

 , Lamb's-quarters (Chenopodium al- 

 bum).* 



15. Water hemlock (Cicuta bulbifera).* 



16. Marsh mint (Stachys palustris).* 



Flowers. 



17. Mint (Mentha canadensis).* Flowers. 



18. Water hoarhound (Lycopus asper).* 



Mature fruit. 



19. Hairy germander (Teucrium occiden- 



tale).* Mature fruit. 



20. Small cleavers (Oalium, trifidum).* Im- 



mature fruit. 



21. Ragweed (Ambrosia elatior).* Flow- 



ers, to mature fruit. 



22. Goldenrod (Solidago altissima).* Flow- 



ers. 



23. Sunflower (HeUanthus cmnuus).* 



Flowers. 



24. Bur marigold (Bidens laevis).* Flow- 



ers. 



25. Willow aster (Aster salicifolius).* 



Flowers. 



SEMISUBMERGED PLANTS. 



Dominants: 



26. Tule (Scirpus validus).* Mature fruit. 



27. Reed (Phragmites communis).* 

 Secondary species: 



28. Cat-tail (Typha latifolia).* 



29. Bur reed (Sparganium eurycarpum) .* 



Mature fruit ; common. 

 80. Water plantain (Alisma subcorda- 

 turn).* Common. 



31. Wapato (Sagittaria latifolia).* Ma- 



ture fruit. 



32. Wild rice (Zizania palustris).* 



33. Cord - grass (Spartina michauxiana). 



Abundant. 



34. Three-square (Scirpus amerlcanus) .* 



Common. 



Ma- 



Ma- 



35. River bulrush (Scirpus fluviatilis) . 



Mature fruit ; common. 



36. Spike rush (Eleocharis, probably ac 



cularis).* 



37. Bristly sedge (Carex comosa).* 



ture fruit ; abundant. 



38. Curly dock (Bumex crispus).* 



ture fruit ; common. 

 89. Water smartweed (Polygonum amphi- 

 bium). 



40. Water hemlock (Cicuta maculata).* 



Flowers, to immature fruit. 



41. Swamp milkweed (Asclepias incar- 



nata).* Mature fruit. 



SUBMERGED PLANTS. 



Dominants: 



42. Floating pondweed (Potamogeton 



natans).* 



43. Coontail (Cerntophyllum demersum).* 

 Secondary spec'ees: 



44. Musk grass (Chara sp.).* Common. 



45. Water moss (Drepanocladus kneiffl 



var. laxum). 



46. Curly pondweed (Potamogeton per- 



foliatus richardsonii) .* 



47. Variable pondweed (Potamogeton heter- 



ophyllus). 



48. Sago pondweed (Potamogeton pecti- 



natus) .* Abundant. 



49. Eelgrass pondweed (Potamogeton com- 

 ;).* Common. 



50. Small pondweed (Potamogeton pusil- 



lus).* Winter buds present; com- 

 mon. 



51. Bushy pondweed (Najas flexilis).* 



Common. 



52. Spike rush (Eleocharis, probably ad- 



cularis).* Common. 



53. Water smartweed (Polygonum amphi- 



bium). 



54. Yellow water-crowfoot (Ranunculus 



delphinifoUus) . 



55. Water milfoil (Myriophyllum spica- 



tum).* Abundant. 



56. Bladderwort (Utricularia vulgaris). 



Common. 



