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Boechera koehleri (Howell) 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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50. Boechera koehleri (T. J. Howell) Al-Shehbaz, Novon 13: 386. 2003; Arabis koehleri T. J. Howell, Fl. Northw. Amer. 1: 44. 1897. TYPE: United States, Oregon, Douglas Co., Cost Mts., along Umpqua River at Roseburg, cliffs, 17 Apr 1887, T. J. Howell s.n. (holotype, ORE!; isotypes, GH!, MO!, NDG!, 4NY!, US!, WTU).

Arabis arbuscula Greene, Leafl. Bot. Observ. Crit. 2: 77. 1910. TYPE: United States, Oregon, Josephine Co., Eight Dollars Mt., 18 Jun 1904, C. V. Piper 5065 (holotype, US!; isotype, GH!).

Arabis koehleri var. stipitata Rollins, Rhodora 43: 426. 1941. TYPE: United States, Oregon, Josephine Co., Near Waldo on Camp Chicago Trail, 19 April 1934, A. Eastwood & J. T. Howell 1695 (holotype, GH!; isotypes, CAS!, GH!).

     Plants long-lived perennials, with woody caudices, with many peg-like persistent leaf bases; sexual, with ellipsoid pollen. Stems usually 1 per caudex branch, elevated above ground surface on woody bases, arising from center of basal rosettes, 0.8–4.5 dm, lower parts with stalked, 2–4-rayed trichomes to 0.5 mm, these mixed with simple trichomes to 1 mm, upper parts glabrous. Leaves at stem bases narrowly oblanceolate, 1–3 mm wide, entire, ciliate proximally with simple trichomes to 1 mm, blade surfaces moderately to sparsely pubescent with stalked, 2–4-rayed trichomes 0.1–0.3(–0.5) mm; cauline leaves 3–17(–30), rarely concealing stem, the uppermost glabrous, with auricles 0.5–2.5 mm. Inflorescences mostly unbranched, 6–20(–35)-flowered; fruiting pedicels 10–18 mm, divaricate-ascending to horizontal, straight, glabrous or with few appressed, branched trichomes. Flowers ascending at anthesis; sepals pubescent; petals deep purple to magenta, 8–12 ´ 2.5–4.0 mm, glabrous; ovules 58–94 per fruit. Fruits 5.0–7.5 cm ´ 1.8–2.5 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 uniseriate, 1.3–1.8 ´ 1.2–1.5 mm; wing continuous, 0.1–0.2 mm wide.

Flowering: Apr–May.

Habitat: serpentine and limestone outcrops.

Elevation: 100–500 m.

Distribution: United States (California, Oregon).

Reproductive mode: sexual diploid.

 

 
 


 

 
 
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