Colorado Weed Seeds 
»7 
Celery-leaved Crow'- 
FOOT 
45 
Cenchrus .... 20, 
22, 
23 
carolinianns . . . . 
23 
tribuloides 
23 
Cerastium 
20, 
42 
vulgatum 
42 
Chaetochloa 
25 
qlauca 
2 5 
viridis 
25 
Chamomile 
73 
Charlock 
50 
White 
Cheat 
30 
(,'HEESES 
20, 
30 
CHENOPODIACEAF. , 
.37 
Chenopodium ..20, 
33, 
39 
39 
Chess 
30 
Chickweed 
42 
Common 
42 
Family 
4.2 
Large Mouse-ear. . 
.42 
Mouse-ear 
42 
Chicory Famii^y . 
79 
Cholla . . . 
58 
Chrysanthemum . 
20 
leucanthemum . . 
78 
CTCHORIACEAE . 
79 
Cichorium 
20 
intybus 
79 
Cinquefoil 
52 
Rough 
52 
Cirsium 
arvense 
76 
discolor 
76 
Flodmanii 
76 
lanceolatum . . . 
76 
Cleavers . .' 
69 
Cleome 
20, 
50 
serrulata 
50 
Clover 
54 
Honey 
54 
Low Hop 
54 
Stinking 
54 
Sweet 
54 
Cockle .... 21, 
43, 
44 
Corn 
21, 
4 4 
Cow 
21, 
43 
White 
44 
COMPOSITAE . . . 
72 
Composite Family' . . 
72 
Cone-flower 
Long-headed . . . 
74 
Prairie 
74 
Conringia 
20. 
40 
oriental is 
Coral-vine 
60 
Corn 
Cockle 
Sow-thistle 
Cow 1 : 5 , 
Cockle 
Cress 
Herb 
Crab-grass 
Large 
Small 
Creeping Thistle .... 
Cress 
Cow 
Field 
Penny 
Crowfoot 
Celery-leaved .... 
Cursed 
Ditch 
Family 
CRUCIFERAE 
Curled Dock 
Cursed Crowfoot .... 
Cuscuta 20, 
arvensis 21, 
epithyimim 
indecora 21, 
planiflora 21, 
CUSCUTACEAE 
Cut-leaved 
Nightshade 
Water Morehound . 
Cycloloma 20, 
atriplicifolium .... 
44 
44 
80 
48 
43 
48 
43 
2 "> 
26 
26 
76 
48 
48 
48 
48 
4 5 
45 
45 
45 
45 
35 
45 
60 
61 
61 
61 
61 
60 
• 
66 
. o4 
38 
38 
CYPERACEAE 33 
D.A.TSY 
Ox-eye 
Dandelion 
Common 
Red-seeded 
Darnel 
Ditch Crowfoot . . . . 
Dock 
Curled 
Golden 
Yellow 
Dodder 
Family 
Field 
Large-seeded Ai.f- 
ALFA 
Dog Fennel 
Dotted Button 
Snakeroot. . . . 
Downy Brome Grass . 
Drooping Thistle . . . 
Drop- SEED 
Sand 
Echiuochloa . . 20, 22, 24 
crus-galli 24 
Elder 
Marsh 71 
Elyimis 20, 22, 32 
canadensis 32 
Eragrostis .... 20, 22, 32 
magastachya 32 
Erysimum 
officinale 49 
Euphorbia 20, 56 
marginata 57 
EUPHORBIACEAE . . 56 
Evening Primrose 
Family 59 
FAB ACE AE 52 
False 
Flax 4 9 
Mallow' 57 
Fennel ”8 
Dog 
Few-flowered 
PSORALEA 52 
Field 21, 60 
Cress 48 
Dodder 21, 60 
Sorrel 35 
Sow-thistle’ 21 
Thistle 76 
Fig 
Indian 58 
Figwort Family .... 67 
Five-finger 52 
Flax 49 
False 49 
Flodman’s Thistle ..76 
Forked Beard Grass . .28 
.33 
25 
2 5 
2 5 
2 5 
7C 
70 
48 
69 
69 
70 
20 
59 
59 
78 
Fowl Meadow Grass 
Foxtail 
81 
Grass 
82 
Green 
31 
Yellow 
45 
Franseria 
tomentosa .... 
21, 
35 
Frenchweed .... 
36 
3 5 
Galium 
20, 
aparine 
60 
boreale 
69, 
61 
coccinea 
61 
parviflora 
78 
GERANIACEAE . 
73 
Geranium Family 
55, 
.30 
Germander 
76 
Hairy 
32 
Geum 
20, 
32 
macrophyllum . 
20 
65 
65 
57 
51 
