Aconitum porrectum Rydb.

  • Authority

    New York Botanical Garden. Herbarium of Dr. Per Axel Rydberg. Purchased, 1899. Contributions from the New York Botanical Garden.

  • Family

    Ranunculaceae

  • Scientific Name

    Aconitum porrectum Rydb.

  • Description

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    Species Description - Perennial with thick fusiform roots: stem stout, 6-7 dm. high, leafy, glabrous below, densely viscid-pubescent above; basal leaves glabrous, with petioles about 1 dm. long; blades reniform-pentagonal in outline, 6-10 cm. wide, 5-7 divided to near the base; divisions rhombic or rhombic-oblanceolate, variously cleft above, cuneate at the base: inflorescence racemose or somewhat paniculate, not leafy; pedicels ascending, 1-3 cm. long: sepals dark blue, ciliate on the margins; hood very saccate, helmet-shaped; beak acuminate, porrect, horizontal or even slightly ascending, 15-18 mm. long; lateral sepals broadly obovate or semi-reniform, about 12-14 mm. long, very oblique; lower sepals lanceolate or oblong, acute, 7—10 mm. long.

  • Discussion

    This is closely related to the preceding, but differs in the broader and less deeply divided divisions of the leaves, the shorter lower sepals, the more open and less leafy inflorescence, and the more oblique lateral sepals. It grows at an altitude of 2400- 2800 m.

    Colorado: Coffee Pot Spring, 1894, Crandall (type in herb. N. Y. Bot. Garden ; cotypes in herb. State Agric. College, Colo.) ; Graymount, 1892, Crandall ; foothills, Larimer county, 1895, Crandall & Cowen ; Arapahoe Pass, 1891, Crandall, 36 ; Lake City, 1881, J. S. Newberry ; North Park, near Teller, 1884, C. S. Sheldon

  • Distribution

    Colorado; Coffee Pot Spring.

    Colorado United States of America North America|