Home Brassicaceae
About
Name Search
Genera
Species List
Boechera fernaldiana (Rollins) W.A. Weber 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: Phytologia 51(6): 370. 1982. (Phytologia) Name publication detailView in Biodiversity Heritage Library
 

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

Export To PDF Export To Word

32. Boechera fernaldiana (Rollins) W. A. Weber, Phytologia 51: 370. 1982.

     Plants long-lived, cespitose perennials, with somewhat woody caudices, occasionally with crowded, persistent leaf bases; sexual, with ellipsoid pollen. Stems usually 1 per caudex branch, slightly elevated on woody bases or arising near ground surface from center of basal rosettes, 1.0–3.8 dm, lower parts with many, short-stalked, 4–8-rayed trichomes 0.04–0.10 mm, these sometimes mixed with stalked 2-rayed trichomes to 0.5 mm, upper parts usually sparsely pubescent. Leaves at stem bases narrowly oblanceolate, 1–4 mm wide, entire, ciliate along petioles with simple trichomes to 1 mm, blade surfaces densely pubescent with short-stalked, 4–8-rayed trichomes 0.04–0.10 mm; cauline leaves 5–10, not concealing stem, the uppermost usually sparsely pubescent, with auricles 0.3–2.0 mm. Inflorescences mostly unbranched, 10–20-flowered; fruiting pedicels 5–20 mm, divaricate-ascending, straight, with a few appressed, branched trichomes. Flowers ascending at anthesis; sepals glabrous to sparsely pubescent; petals white or purple, 7–12 ´ 1.5–4.0 mm, glabrous; ovules 30–72 per fruit. Fruits 3.5–6.5(–7.5) cm ´ 1.0–1.6 mm, divaricate-ascending, not appressed to rachises, not secund, straight or curved, with parallel edges, glabrous; style 0.1–1.0 mm. Seeds uniseriate, 1.0–1.2 ´ 0.8–1.0 mm; wing continuous, ca. 0.1 mm wide.

Flowering: April–Jul.

Habitat: igneous and sandstone rock outcrops, talus, and rocky slopes, sagebrush and pinyon-juniper woodlands.

Elevation: 1500–3350 m.

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

Reproductive mode: sexual diploid.

     Two subspecies: w U.S.A.

 

 

Export To PDF Export To Word

                                Key to the subspecies of Boechera fernaldiana

1. Petals purple to lavender; sepals purplish, moderately to sparsely pubescent; Nevada ................32a. subsp. fernaldiana

1. Petals white; sepals greenish, glabrous or rarely sparsely pubescent; Colorado and Utah..............32b. subsp. vivariensis

 

 
 


 

 
 
© 2014 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110