INDEX OF COMMON AND SCIENTIFIC NAMES. 



Agropyron brevifolium, 49. 



caninum pubescens, 49. 

 occidentale, 49. 

 pseudorepens, 49. 

 spicatum, 23, 49. 

 tenerum, 34, 49. 

 Agrostis alba, 34, 35, 49, 57. 

 exarata grandis, 49. 

 hallii, 50. 

 humilis, 49. 

 hyemalis, 49. 

 variabilis, 49. 

 Alder, 14. 



Alfalfa, 18, 19, 20, 35-37, 39, 57, 58. 

 Alfilaria, 49. 

 Alkali grass, 17, 54. 



saccaton, 16, 20, 34, 55. 

 Alopecurus geniculatus, 49. 

 Amelanchier alnifolia, 14. 

 Amsinckia, 15. 

 Annual saltbushes, 18. 

 Artemisia arbuscula, 24, 31, 42 

 cana, 31, 43. 

 ludoviciana, 43. 

 rigida, 43. 



spinescens, 12, 15, 16, 43. 

 tridentata, 12, 15, 16, 21, 24, 27, 31, 42, 43. 

 Astragalus nuttallii, 25, 44. 

 Atriplex confertifolia, 12, 15, 16, 27, 44. 

 bastata, 40, 44. 

 nuttallii, 16. 

 truncata, 18, 20, 40, 44. 

 A vena fatua, 40, 50. 

 Awned cyperus, 46. 

 Awned sedge, 18, 34, 47. 

 Awned wheat grass, 49. 

 Barnyard grass, 18, 40, 53. 

 Balsam, 14. 

 Beard grass, 34, 54. 

 Beckmannia erucaeformis, 34, 50. 

 Beckwith clover, 46. 

 Black sage, 12, 16, 19, 21, 24, 27, 38, 42, 43. 

 Blue flag, 39. 

 Blue stem, 11, 15, 33, 56. 

 Borage, 15. 

 Bottle sedge, 48. 

 Bromus carinatus, 50. 

 bordeaceus, 50. 

 marginatus, 50. 

 rubens, 50. 

 secalinus, 50. 

 subvelutinus, 50. 

 Bucklev's blue grass, 23, 25, 32, 53. 

 Bud sage, 12, 15, 16, 27, 43. 

 Bulbous melic grass, 53. 

 Bunch blue grass, 33, 34, 54, 57. 

 Bunch wheat grass, 23, 49. 

 Bur-reed, 34, 48, 54. 

 Cactaceaj, 15. 



Calamagrostis hyperborea americana, 18, 34, 50. 

 Canadian rye grass, 52. 

 Carex aristata, 18, 34, 47. 

 douglasii, 34, 47. 

 gayana, 47. 

 lanuginosa, 34, 47. 

 marcida, 47. 

 nebraskensis, 16, 34, 47. 

 tenella, 48. 

 utriculata, 48. 

 Cat-tail, 34, 48. 



Ceanothus velutinus, 14, 31, 32. 

 Cercocarpus ledifolius, 14, 31. 

 Chsetochloa glauca, 50. 

 viridis, 50. 



Choke cherry, 14, 31. 

 Chrysothamnus graveolens, 12, 16, 17. 



viscidiflorus, 16. 

 Cicuta vagans, 46. 

 Clover, 17, 34. 

 Clustered field sedge, 47. 

 Creeping spike rush, 33, 34, 46. 

 Creosote busb,15. 

 Cyperus aristatus,46. 



erythrorhizos, 46. 

 Dakota lotus, 48. 

 Dalea kingii, 38. 

 Dasiphora fruticosa, 14, 30. 

 Death weed, 39. 

 Delphinum scopulorum, 41. 

 Deschampsia ceespitosa, 46, 50. 

 calycina, 51. 

 elongata, 51. 

 Distichlis spicata, 12, 16, 17, 19, 20, 34, 51. 

 Dondia depressa erecta, 18, 40, 44. 



diffusa, 44. 

 Douglas sedge, 47. 

 Downy oat grass, 55. 

 Dropseed, 55. 

 Early bunch grass, 52. 

 Eatonia obtusata, 52. 

 Eleocharis palustris, 33, 34, 46. 

 Elymus canadensis, 52. 



condensatus, 15, 34, 51, 57. 



glaucus,51. 



triticoides, 11, 15, 33, 34, C L. 

 Equisetum robustum, 39. 

 Eragrostis hypnoides, 52. 

 Eriocoma cuspidata, 52. 

 Eritrichium, 15. 

 Erodium cicutarium, 48. 

 Eurotia lanata, 16, 45. 

 Festuca octoflora, 52. 



ovina, 29,30,52. 

 Gay's sedge, 47. 

 Giant rvegrass, 15, 34, 51, 57. 

 Gilia, 15. 



Grayia spinosa, 12,27,45. 

 Grease wood, 12, 15, 17, 19, 20, 45. 

 Green foxtail, 50. 

 Hairy brome, 50. 

 Halberd-leaved saltbush, 40,44. 

 Hall's redtop, 50. 

 Helianthus annuus, 39. 

 Heliotrope, 39. 



Heliotropium curasavicum, 39. 

 Holodiscus dumosus, 14. 

 Homalocenchrus oryzoides, 52. 

 Hop sage, 12, 27, 45. 

 Hordeum jubatum, 17, 33, 34, 40, 52. 

 maritimum, 53. 

 murinum, 53. 

 nodosum, 34, 53. 

 Horkelia fusca, 48. 

 Horsetail, 39. 

 Indian currant, 14, 30. 

 Indian millet, 52. 

 Indian wheat, 25. 

 Iodine weed, 12, 45. 

 Iris missouriensis, 39. 

 Iva axillaris, 39. 

 Juncus balticus, 33, 34, 39, 46. 



bufonius, 46. 



nevadensis, 46. 

 Juniper, 14. 



Juniperus virginiana, 14. 

 Keeled brome, 50. 

 Kentucky blue grass, 54. 

 Kochia americana, 27, 45. 



59 



