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Boechera falcatoria (Rollins) Dorn 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: Brittonia 55(1): 3. 2003. (Brittonia) Name publication detail
 

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

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28. Boechera falcatoria (Rollins) Dorn, Brittonia 3: 2003; Arabis falcatoria Rollins, Contr. Gray Herb. 212: 106. 1982. TYPE: United States, Utah, Box Elder Co., in marble chip rock, 3.7 miles north of Grouse Creek, on road to Oakley, Idaho, 9 Jun 1981, Reed C. & Kathryn W. Rollins 81259 (holotype, GH!; isotypes, BRY, MO!, NY!, RM!, RSA!, UC!, US!, UTC).

     Plants short- to long-lived perennials, occasionally with woody caudices, lacking crowded, persistent leaf bases; apomictic, with spheroid pollen. Stems usually 2–7 per caudex branch, arising near ground surface from margin of basal rosettes, 0.5–2(–3) dm, lower parts with abundant, simple and stalked, 2-rayed trichomes 0.3–0.8 mm, upper parts glabrous. Leaves at stem bases narrowly oblanceolate, 1–3 mm wide, entire, ciliate with trichomes to 1 mm, blade surfaces pubescent with stalked, 2–4-rayed trichomes 0.3–0.8 mm; cauline leaves 3–7(–10), not concealing stem, the uppermost glabrous, with auricles 0.2–1 mm. Inflorescences unbranched, 6–15-flowered; fruiting pedicels 3–9 mm, horizontal to divaricate-ascending, straight, glabrous. Flowers ascending at anthesis; sepals pubescent; petals white or lavender, 5–7 ´ 1.5–2.5 mm, glabrous; ovules 50–84 per fruit. Fruits 3.5–6.5 cm ´ 1.7–2.0 mm, horizontal to divaricate-ascending, not appressed to rachises, not secund, usually strongly curved, with parallel edges, glabrous; style 0.05–0.50 mm. Seeds uniseriate, 1.5–2.0 ´ 1.1–1.5 mm; wing continuous, 0.1–0.2 mm wide.

Flowering: May–Jun.

Habitat: rock outcrps and gravelly soil in sagebrush and mountain shrub communities.

Elevation: 2000–2200 m.

Distribution: United States (Utah/Box Elder County).

Reproductive mode: apomictic triploid.

 

 
 


 

 
 
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