. 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 . 3. Radicula obtusa (Nutt.) Greene, Blunt-leaved Yellow-cress. Fig. 2028. Nasturtium obtusum Nutt.; T. & G. Fl. N. A. i: 74. 1838. Roripa obtusa Britton, Mem. Torr. Club 5: 169. 1894. Radicula obtusa Greene, Leaflets, i: 113. 1905. Annual or biennial, diffuse, much-branched, the branches ascending or erect. Leaves ob- long or oblanceolate, 2-4' long, pinnately di- vided,
. 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 . 3. Radicula obtusa (Nutt.) Greene, Blunt-leaved Yellow-cress. Fig. 2028. Nasturtium obtusum Nutt.; T. & G. Fl. N. A. i: 74. 1838. Roripa obtusa Britton, Mem. Torr. Club 5: 169. 1894. Radicula obtusa Greene, Leaflets, i: 113. 1905. Annual or biennial, diffuse, much-branched, the branches ascending or erect. Leaves ob- long or oblanceolate, 2-4' long, pinnately di- vided, or pinnatifid, the lobes obtuse, repand- toothed, or sometimes entire; pedicels i"-2" long; flowers yellow, i" broad or less; pods narrowly oblong, or linear, 3"-$" long, ascend- ing; style i" long. In low grounds, Michigan to Missouri, Texas, Montana and California. April-Aug.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
