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 I. Cheirinia cheiranthoides (L.) Link. Worm- seed or Treacle Mustard. Fig. 2055. Erysimum cheiranthoides L. Sp. PI. 661. 1753. Cheirinia cheiranthoides Link, Enum. Hort. Berol. 2: i;o. Chciranthus cheiranthoides Heller, Cat. N. A. PI. 4. 1898. Erect, minutely rough-pubescent, branching, 8-2° high. Leaves lanceolate
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 I. Cheirinia cheiranthoides (L.) Link. Worm- seed or Treacle Mustard. Fig. 2055. Erysimum cheiranthoides L. Sp. PI. 661. 1753. Cheirinia cheiranthoides Link, Enum. Hort. Berol. 2: i;o. Chciranthus cheiranthoides Heller, Cat. N. A. PI. 4. 1898. Erect, minutely rough-pubescent, branching, 8-2° high. Leaves lanceolate or oblong-lanceolate, 1-4' long, acntish or obtuse, entire or slightly dentate, taper- ing at the base into a short petiole or the upper sessile; pedicels slender, spreading or somewhat ascending, 3'-4' long in fruit; flowers about 2J' high; pods linear, obtusely 4-angled, glabrous, 6'-i2' long, less than l' broad, nearly erect on slender spreading pedi- cels; valves strongly keeled; styles ¥' long. Along streams and in fields, Newfoundland to New Jersey, Pennsylvania, Tennessee and Missouri, west to the Pacific Coast. Appears in some places as adventive. Also in northern Europe. Tarrify. June-Aug. 3. Cheirinia inconspicua (S. \\'ats.) Britten. Small-flowered Prairie- rocket. Fig. 2056. Erysimum parviflorum Nutt.; T. &; G. Fl. N. A. 1: 95- 1838. Not Pers. Erysimum asperum var. inconspicuum S. Wats. Bot. King's Exp. 24. 1871. jS. inconspicuum MacM. Met. Minn. 268. 1892. Erysimum syrticolum Sheldon, Bull. Torr. Club 20: 285. 1893. Perennial, roughish-puberulent or canescent, stem erect, i°-2° tall, simple or sparingly branched. Leaves oblanceolate or linear, l'-3' long, obtuse, entire or dentate, the upper ses- sile, the lower slender-petioled; flowers about 4' high and broad; pedicels stout, about 2' long in fruit, ascending; pod narrowly linear, S -2i' long, about i' wide, minutely rough- puberulent, narrowly ascending or erect; style very stout, J'-i' long. In dry soil, On
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