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Streptanthus cordatus Nutt. var. cordatus

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11a. Streptanthus cordatus Nuttall var. cordatus; Cartiera cordata (Nuttall) Greene, Leafl. Bot. Observ. Crit. 1: 226. 1906; Erysimum cordatum (Nuttall) Kuntze, Revis. Gen. Pl. 2: 933. 1891; Euklisia cordata (Nuttall) Rydberg, Bull. Torrey Bot. Club 33: 142. 1906. TYPE: United States, “forests of the Rocky Mountains,” Thomas Nuttall s.n. (holotype, BM!).

Streptanthus argutus Greene, Pittonia 3: 227. 1897; Cartiera arguta (Greene) Greene, Leafl. Bot. Observ. Crit. 1: 226. 1906. TYPE: United States, Colorado, clay cliffs, W bank of the Muddy River, W. Middle Park, 27 Jul1875, H. N. Petterson s.n. (lectotype designated by Weber and Wittmann (Cat. Colorado Fl. 1992: 75), NDG!; isolectotype, GH!).

Streptanthus coloradensis A. Nelson in Coulter & A. Nelson, New Man. Rocky Mt. Pl. 211. 1909. TYPE: United States, Colorado, Garfield Co., Glenwood Springs, 6 Jun 1902, G. E. Osterhout 2586 (holotype, RM).

Streptanthus crassifolius Greene, Pittonia 3: 227. 1897; Cartiera crassifolia (Greene) Greene, Leafl. Bot. Observ. Crit. 1: 226. 1906; Euklisia crassifolia (Greene) Rydberg, Bull. Torrey Bot. Club 33: 142. 1906. TYPE: United States, California, Tehachapi, 24 Jun 1889, E. L. Greene s.n. (lectotype here designated, NDG). Greene (1897) did not cite any specimens in his original description of this entity and indicated (p. 227) that it is “frequent in the mountain districts of eastern California southward, and in adjacent Nevada and Arizona.” The only Californian collection at NDG that carries Greene’s handwriting is the above and is taken herein as the lectotype.

Cartiera cuneata Rydberg, Fl. Rocky Mts., ed. 2. 1123. 1923. TYPE: United States, Utah, Sanpete Co. Manti, 26 Jun 1920, A. O. Garrett 2938 (holotype, NY!).

Cartiera leptopetala Greene, Leafl. Bot. Observ. Crit. 1: 226. 1906. TYPE: United States, Oregon, Stein’s Mt., Jul 1898, W. C. Cusick 2002 (holotype, US!; isotypes, GH!, MO!, NDG!, UC!).

Cartiera multiceps Greene, Leafl. Bot. Observ. Crit. 1: 226. 1906. TYPE: United States, Oregon, Harney Co.: Guano Ranch, 24 Jul 1896, F. V. Coville & J. B. Leiberg 2 (holotype, US!).

Streptanthus cordatus var. duranii Jepson, Fl. Calif. 2: 29. 1936. TYPE: United States, California, Mono Co., cottonwood Creek, White Mts, R34E, T5S, Sec. 7, 37°32′N, 10,000 ft., 29 Jun 1926, Victor Duran 1647 (holotype, JEPS!).

Basal leaves obovate to spatulate, obtuse to rounded at apex; middle cauline leaves rounded to obtuse at apex. Fruits 2.5–6(–7) mm wide; stigma subentire to prominently 2-lobed. 2n = 28, 56.

Flowering: Apr–Jul.

Habitat: dry stony slopes, sandy draws, limestone ledges, gravelly knolls, pinyon-juniper woodlands, sagebrush, open pine forests.

Elevation: 500–3100 m.

Distribution: United States (Arizona, California, Colorado, Idaho, New Mexico, Nevada, Oregon, Utah, Wyoming).