An illustrated flora of the 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 ed2illustratedflo02brit Year: 1913 3. Sophia incisa (Engelm.) Greene. Western Tansy-Mustard. Fig. 2053. Sisymbrium incisum Engelm.; A. Gray, Mem. Am. Acad. '4:8. 1849. Descurainia incisa Britton, Mem. Torr. Club 5 : 173. 1894. Sophia incisa Greene, Pittonia 3: 95. 1896. Sophia intermedia Rydb. Mem. N. Y. Bot. Card, i: 184. 1900. Resembles the precedi
An illustrated flora of the 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 ed2illustratedflo02brit Year: 1913 3. Sophia incisa (Engelm.) Greene. Western Tansy-Mustard. Fig. 2053. Sisymbrium incisum Engelm.; A. Gray, Mem. Am. Acad. '4:8. 1849. Descurainia incisa Britton, Mem. Torr. Club 5 : 173. 1894. Sophia incisa Greene, Pittonia 3: 95. 1896. Sophia intermedia Rydb. Mem. N. Y. Bot. Card, i: 184. 1900. Resembles the preceding species, but is greener, nearly glabrous, or the pubescence is with short glandular hairs. Leaves pinnately divided, and the pinnae 1-2-pinnatind into linear-oblong entire or toothed segments; fruiting pedicels widely ascending, filiform, 5'-lo' long, usually longer than the pods; pods 4'-/' long, about i' thick, somewhat swollen, erect or ascending; seeds in i row or indistinctly in 4. Sophia Hartwegiana (Fourn.) Greene. Hartweg's Tansy-Mustard. Fig. 2054. Sisymbrium Harlwegianum Fourn. Sisymb. 66. 1865. Sisymbrium incisum var. Harlivegianum Brew. &; Wats. Bot. Cal. 1: 4f. 1876. Descurainia Hartwegiana Britton, Mem. Torr. Club 5: 173- '1894- Sophia Hartwegiana Greene, Pittonia 3: 95. 1896. Similar to the two preceding species, densely minutely canescent or puberulent, stem I'-a' tall, the branches slender, ascending. Leaves usually less finely dissected, pinnately divided into 5-7 pinnae, which are pinnatifid with obtuse segments and lobes: fruiting pedicels erect-appressed or closely ascending. \\'-\' long, shorter than or equalling the pods; pods erect or nearly so, linear, 4'-S' long, about \' thick; seeds in I row. In dry soil. Minnesota to Saskatchewan. British Columbia, Colorado, Utah, Mexico and California. May-July.
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