Weeds of the Farm and GardenOrange Judd Company, 1912 - 281 páginas |
Dentro del libro
Resultados 1-5 de 22
Página 125
... flat topped or convex flower clus- ter somewhat like the corymb , but with the terminal flower developing first . A glomerule is a cyme very much . Fig . 61. Inflo- compacted , resembling a head . rescence . Head of ragweed , achene ...
... flat topped or convex flower clus- ter somewhat like the corymb , but with the terminal flower developing first . A glomerule is a cyme very much . Fig . 61. Inflo- compacted , resembling a head . rescence . Head of ragweed , achene ...
Página 141
... flat , lanceolate or linear and sparingly hairy on both sides , with rough margins ; hairs throughout spring from small papillæ , those on the leaf blade being confined to the principal nerves ; panicle dif- DESCRIPTIONS OF SOME COMMON ...
... flat , lanceolate or linear and sparingly hairy on both sides , with rough margins ; hairs throughout spring from small papillæ , those on the leaf blade being confined to the principal nerves ; panicle dif- DESCRIPTIONS OF SOME COMMON ...
Página 142
... flat , seven to fourteen inches long ; panicles diffuse , termi- nal or lateral ; sheaths smooth , lax , somewhat flattened ; spikelets rather crowded upon short , scabrous pedicels ; anthers saffron - yellow ; blooming time from July ...
... flat , seven to fourteen inches long ; panicles diffuse , termi- nal or lateral ; sheaths smooth , lax , somewhat flattened ; spikelets rather crowded upon short , scabrous pedicels ; anthers saffron - yellow ; blooming time from July ...
Página 144
... flat or simply folded , linear , about six inches long , Fig . 90. Green foxtail ( Setaria viridis ) . ( U. S. Dept. Agrl . ) very finely toothed on the margins ; sheaths generally longer than the internodes , hairy along the margins ...
... flat or simply folded , linear , about six inches long , Fig . 90. Green foxtail ( Setaria viridis ) . ( U. S. Dept. Agrl . ) very finely toothed on the margins ; sheaths generally longer than the internodes , hairy along the margins ...
Página 145
... flat leaves , and an open , pale- green or straw - colored panicle ; nodes usually bearded ; sheaths eared , scabrous on the sides at the apex ; very rough , the points of the minute spines directed downward ; ligule membranaceous ...
... flat leaves , and an open , pale- green or straw - colored panicle ; nodes usually bearded ; sheaths eared , scabrous on the sides at the apex ; very rough , the points of the minute spines directed downward ; ligule membranaceous ...
Otras ediciones - Ver todas
Términos y frases comunes
achenes alfalfa annual awned biennial blue grass bracts branched brome grass bull thistle C. M. King calyx Canada thistle carpels cent Cirsium clover seed clusters cocklebur common weed corn corolla crab grass crop cultivated curled dock dodder erect Europe five five-lobed four foxtail fruit germination glabrous glumes hairy herb horse nettle impurities inches long involucre Iowa lanceolate leaf leaves linear lobes marsh elder meadows milkweed Minnesota Missouri morning glory mustard native North numerous oats oblong ovary ovate ovules panicles pappus pastures pepper grass perennial petals petioled pigweed pinnately pistil Plantago plantain plants plowing poisonous Polygonum prickly pubescent purple quack grass racemes ragweed roadsides roots rootstocks Rumex sepals sessile sheaths sheep sorrel slender smartweed smooth soil species spikelets spikes spreading Spurge squirrel-tail stamens stem stipules sulphate Sunflower sweet clover Texas three feet high toothed troublesome weed U. S. Dept upper waste places weed seeds wild yellow