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Boechera inyoensis (Rollins) 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: Novon 13(4): 386. 2003. (Novon) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

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

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48. Boechera inyoensis (Rollins) Al-Shehbaz, Novon 13: 386. 2003; Arabis inyoensis Rollins, Rhodora 43: 457. 1941; Boechera selbyi (Rydberg) W. A. Weber var. inyoensis (Rollins) N. H. Holmgren, Brittonia 56: 246. 2004. TYPE: United States, sand, in the Sierra foothills near the county hospital at Big Pine, 15 May 1906, A. A. Heller 8259 (holotype, GH!; isotypes, CAS!, E!, MO!, NY!, UC!, US!).

Arabis holboellii Hornemann var. derensis S. L. Welsh in S. L. Welsh et al., Utah Fl., ed. 3. 257. 2003. TYPE: United States, Utah, Millard Co., rocky foothills, Whitesage Valley, 5700 ft, 11 May 1935, B. F. Harrison 6357 (holotype, BRY!; isotype, BRY!).

     Plants short-lived perennials, with mostly non-woody caudices, lacking crowded, persistent leaf bases; apomictic, with spheroid pollen. Stems usually 1 per caudex, arising near ground surface from center of basal rosettes, (1.0–)2.5–6.5 dm, lower parts with abundant short-stalked, 7–12-rayed trichomes 0.1–0.2 mm, upper parts densely to sparsely pubescent. Leaves at stem bases oblanceolate, 1–4(–8) mm wide, entire, ciliate on petioles with simple trichomes to 1 mm, blade surfaces densely pubescent with short-stalked, 3–10-rayed trichomes 0.2–0.7 mm; cauline leaves (7–)12–35, concealing stem proximally, the uppermost densely pubescent, with auricles 0.5–2 mm. Inflorescences mostly unbranched, 10–65-flowered; fruiting pedicels 5–15 mm, divaricate-ascending to horizontal, straight or slightly curved downward, with few appressed, branched trichomes. Flowers ascending at anthesis; sepals pubescent; petals lavender to purplish, 5–8 ´ 1.2–2.0 mm, glabrous; ovules 74–134 per fruit. Fruits 3.7–6.5 cm ´ 1.5–2.2 mm, divaricate-ascending to widely pendent, not appressed to rachises, not secund, curved or rarely straight, with parallel edges, glabrous; style 0.05–0.20 mm. Seeds subbiseriate or rarely uniseriate, 1.7–2.0 ´ 1–1.5 mm; wing continuous, 0.1–0.2 mm wide. 2n = 21.

Flowering: Apr–Jun.

Habitat: limestone and volcanic rock outcrops and clay soils in desert scrub and pinyon-juniper woodland.

Elevation: 1400–2400 m.

Distribution: United States (California, Nevada, Utah).

Reproductive mode: apomictic triploid.

 

 
 


 

 
 
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