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Boechera atrorubens (Suksd. ex Greene) Windham & Al-Shehbaz Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Published In: Harvard Papers in Botany 11(1): 64. 2006. (Harvard Pap. Bot.) Name publication detail
 

Project Name Data (Last Modified On 7/21/2009)
 

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3. Boechera atrorubens (Suksdorf ex Greene) Windham & Al-Shehbaz, Harvard Pap. Bot. 11: 64. 2006; Arabis atrorubens Suksdorf ex Greene, Erythea 1: 223. 1893; A. sparsiflora Nuttall var. atrorubens (Suksdorf ex Greene) Rollins, Res. Stud. State Coll. Wash. 4: 26. 1936. TYPE: United States, Washington, western Klickitat County, on rocky mountain summits, 17 May 1892, W. N. Suksdorf 2105 (holotype: WS!; isotypes: GH!, MO!, NY, 2U!, WS!).

Arabis atriflora Suksdorf, Deutsch. Bot. Monatsschr. 16: 211. 1898. TYPE: same as above.

     Plants mostly short-lived perennials, with non-woody caudices, lacking crowded, persistent leaf bases; sexual, with ellipsoid pollen. Stems usually 1 per caudex branch, arising near ground surface from center of basal rosettes, 0.8–6.0 dm, lower parts with scattered, simple and short- stalked, 2-rayed trichomes 0.10–0.15 mm, upper parts glabrous. Leaves at stem bases oblanceolate, 4–10 mm wide, usually dentate, not ciliate, blade surfaces densely pubescent with short-stalked, 3–4-rayed trichomes 0.1–0.2 mm; cauline leaves 7–25, concealing stem proximally, the uppermost glabrous, with auricles 1–4 mm. Inflorescences mostly unbranched, 6–20-flowered; fruiting pedicels 5–10 mm, ascending, usually straight, glabrous or with spreading, simple trichomes. Flowers ascending at anthesis; sepals pubescent; petals dark reddish purple drying indigo, 7–9 ´ 1.5–2.0 mm, glabrous; ovules 80–100 per fruit. Fruits (4–)6–12 cm ´ 1.7–2.2 mm, ascending, not appressed to rachises, not secund, curved or straight, with parallel edges, glabrous; style 0.2–0.5 mm. Seeds uniseriate, 1.2–1.7 ´ 0.9–1.2 mm; wing distal and lateral, 0.1–0.2 mm wide.

Flowering: Apr–May.

Habitat: rocky summits and sandy loam on sagebrush slopes.

Elevation: ca. 600 m.

Distribution: United States (Oregon, Washington).

Reproductive mode: sexual diploid.

 

 
 


 

 
 
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