. An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . Pla dry North Dakota to Assiniboia, Wyoming, Nebraska and Texas. April-May. 12. CYNOMARATHRUM Nutt.; Coult. & Rose, Contr. Nat. Herb. 7 : 244. 1900. Perennial, acaulescent herbs, with stout rootstocks, pinnately compound leaves and j-ellow flowers in compound cymes. Involucre mostly wanting. Involucels of a few narrow bracts. Calyx-teeth evident. Fruit oblong, strongly f
. An illustrated flora of the northern United States, Canada and the British possessions : from Newfoundland to the parallel of the southern boundary of Virginia and from the Atlantic Ocean westward to the 102nd meridian . Pla dry North Dakota to Assiniboia, Wyoming, Nebraska and Texas. April-May. 12. CYNOMARATHRUM Nutt.; Coult. & Rose, Contr. Nat. Herb. 7 : 244. 1900. Perennial, acaulescent herbs, with stout rootstocks, pinnately compound leaves and j-ellow flowers in compound cymes. Involucre mostly wanting. Involucels of a few narrow bracts. Calyx-teeth evident. Fruit oblong, strongly flattened dorsally, the carpels with sharp prominent dorsal and intermediate ribs, the lateral ribs broader and winged; oil-tubes usually 3-S in the intervals and several on the commissural side. Stylopodium flat, evident. Seed-face flat. [Greek, dog-parsley.] Six known species of the western United States, the following typical.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
