Weeds of the Farm and GardenOrange Judd Company, 1912 - 281 páginas |
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Resultados 1-5 de 24
Página 139
... racemes clus- tered near their extremities ; pedicels of the staminate or neutral spikelets armed with stout hairs , the sessile spike- let broadly lanceolate , acute , pale green or violet , becom- ing dark or nearly black at maturity ...
... racemes clus- tered near their extremities ; pedicels of the staminate or neutral spikelets armed with stout hairs , the sessile spike- let broadly lanceolate , acute , pale green or violet , becom- ing dark or nearly black at maturity ...
Página 147
... racemes , leaves short ; awns all diverging and alike . Common in dry fields , especially southward ; oc- curring as far north as Iowa . A. fasciculata is the sand grass of the plains . It is a perennial with long , spiked panicles ...
... racemes , leaves short ; awns all diverging and alike . Common in dry fields , especially southward ; oc- curring as far north as Iowa . A. fasciculata is the sand grass of the plains . It is a perennial with long , spiked panicles ...
Página 161
... racemes , pistillate flowers in erect spikes , consist- ing of the calyx , with a single sepal folded around the ovary ; fruit , an achene ; seed oily , em- bryo straight . Widely distrib- uted throughout eastern North America , north ...
... racemes , pistillate flowers in erect spikes , consist- ing of the calyx , with a single sepal folded around the ovary ; fruit , an achene ; seed oily , em- bryo straight . Widely distrib- uted throughout eastern North America , north ...
Página 162
... racemes entirely leaf- less above or with few small leaves below ; flower with eight sepals , the three outer herbaceous and leaflike , the three inner larger , somewhat curled and forming , after flowering , the valves of the fruit ...
... racemes entirely leaf- less above or with few small leaves below ; flower with eight sepals , the three outer herbaceous and leaflike , the three inner larger , somewhat curled and forming , after flowering , the valves of the fruit ...
Página 163
... racemes long , spike- like , petioled , and nearly leafless ; one of the three valves in fruit bears a conspicuous grain . White Dock ( Rumex mex- - icanus , Meisn . ) . Lower growing than either of the preceding , being not more than ...
... racemes long , spike- like , petioled , and nearly leafless ; one of the three valves in fruit bears a conspicuous grain . White Dock ( Rumex mex- - icanus , Meisn . ) . Lower growing than either of the preceding , being not more than ...
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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