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Boechera breweri (S. Watson) 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): 384. 2003. (Novon) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

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

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5. Boechera breweri (S. Waton) Al-Shehbaz, Novon 13: 384. 2003.

     Plants long-lived perennials, with woody caudices, lacking crowded, persistent leaf bases; sexual, with ellipsoid pollen. Stems usually 1 per caudex branch, somewhat elevated on woody bases or produced at ground surface, arising from center of basal rosettes, 0.6–3.5(–4.5) dm, lower parts with many simple and long-stalked, 2-rayed (occasionally all simple) trichomes 0.4–1 mm, upper parts sparsely pubescent or glabrous. Leaves at stem bases oblanceolate, 3–7(–11) mm wide, entire or dentate, ciliate proximally with trichomes to 1 mm, blade surfaces densely pubescent with long-stalked, 2–4-rayed trichomes 0.4–0.8 mm; cauline leaves 5–15(–28), often concealing stem proximally, the uppermost pubescent, with auricles 0.5–3.0(–5.0) mm. Inflorescences mostly unbranched, 7–20(–30)-flowered; fruiting pedicels 3–25 mm, ascending to divaricate-ascending, straight, with spreading, simple and 2-rayed trichomes or glabrous. Flowers ascending at anthesis; sepals pubescent; petals purple or rarely lavender, 7–12 ´ 2–4 mm, glabrous; ovules 48–96 per fruit. Fruits 3.5–10.0 cm ´ 1.5–2.2 mm, ascending to divaricate-ascending, not appressed to rachises, not secund, curved or rarely straight, with parallel edges, glabrous or rarely sparsely pubescent; style 0.05–0.30 mm. Seeds uniseriate, 1.2–1.7 ´ 1.0–1.2 mm; wing continuous, 0.1–0.2 mm wide.

Flowering: Mar–Jul.

Habitat: rocky outcrops, ledges and talus, woodlands.

Elevation: 300–2250 m.

Distribution: United States (California, Oregon).

Reproductive mode: sexual diploid.

     Two subspecies: United States (California, Oregon).

 

 

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                             Key to the subspecies of Boechera breweri

1. Stems 0.6–2 dm tall, pubescent distally; fruiting pedicels 3–8(–12) mm long, pubescent;

     fruits 3.5–7.5 cm long......................................................................................... 5a. subsp. breweri

1. Stems 1.8–3.5(–4.5) dm tall, glabrous distally; fruiting pedicels (7–)10–25 mm long,

     glabrous; fruit (4.5–)7–10 cm long................................................................ 5b. subsp. shastaensis

 

 


 

 
 
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