Difference between revisions of "Boechera lasiocarpa"
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|name=Arabis lasiocarpa | |name=Arabis lasiocarpa | ||
|authority=Rollins | |authority=Rollins | ||
| + | |rank=species | ||
|publication_title=Syst. Bot. | |publication_title=Syst. Bot. | ||
|publication_place=6: 58, fig. 1. 1981 | |publication_place=6: 58, fig. 1. 1981 | ||
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name=Boechera lasiocarpa | name=Boechera lasiocarpa | ||
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|authority=(Rollins) Dorn | |authority=(Rollins) Dorn | ||
|rank=species | |rank=species | ||
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|publication year=2003 | |publication year=2003 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V7/V7_547.xml |
|tribe=Brassicaceae tribe Boechereae | |tribe=Brassicaceae tribe Boechereae | ||
|genus=Boechera | |genus=Boechera | ||
Revision as of 22:17, 16 December 2019
Perennials; long-lived; sexual; caudex often woody. Stems 1 or few per caudex branch, arising from center or margin of rosette, somewhat elevated on woody base or near ground surface, (0.7–)2–3.5 dm, densely pubescent proximally, trichomes short-stalked, 4–8-rayed, 0.05–0.15 mm, moderately to sparsely pubescent distally. Basal leaves: blade narrowly oblanceolate, 2–5 mm wide, margins entire, not ciliate, surfaces densely pubescent, trichomes short-stalked, 4–8-rayed, 0.05–0.15 mm. Cauline leaves: 4–10, often concealing stem proximally; blade auricles absent, surfaces of distalmost leaves sparsely to moderately pubescent. Racemes 5–12-flowered, usually unbranched. Fruiting pedicels descending, recurved, 4–14 mm, pubescent, trichomes appressed, branched. Flowers divaricate at anthesis; sepals pubescent; petals purple to lavender, 6–10 × 1.5–2.5 mm, glabrous; pollen ellipsoid. Fruits pendent, usually not appressed to rachis, rarely secund, straight or curved, 2–5 cm × 1.7–2.2 mm; valves glabrous or pubescent throughout; ovules 26–36 per ovary; style 0.2–0.9 mm. Seeds uniseriate, 1.5–2 × 1–1.5 mm; wing distal or continuous, 0.1–0.2 mm wide.
Phenology: Flowering May–Jun.
Habitat: Rocky ridges and slopes with dwarf sagebrush
Elevation: 1800-2800 m
Discussion
Boechera lasiocarpa is a sexual species that appears to be restricted to the Bear River Mountains and northern Wasatch Range in north-central Utah. Reports of Arabis (Boechera) lasiocarpa from central Idaho (e.g., R. C. Rollins 1993; N. H. Holmgren 2005b) represent B. rollinsiorum (see M. D. Windham and I. A. Al-Shehbaz 2006 for detailed comparison).
Selected References
None.