Difference between revisions of "Boechera rollinsiorum"
Harvard Pap. Bot. 11: 81. 2006.
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|elevation=ca. 2100 m | |elevation=ca. 2100 m | ||
|distribution=Idaho. | |distribution=Idaho. | ||
| − | |discussion=<p>Boechera rollinsiorum shows superficial similarities to both B. glareosa and B. lasiocarpa (see M. D. Windham and I. A. Al-Shehbaz 2006 for detailed comparison). It is known thus far only from the type collection below Galena Summit in central Idaho.</p> | + | |discussion=<p><i>Boechera rollinsiorum</i> shows superficial similarities to both <i>B. glareosa</i> and <i>B. lasiocarpa</i> (see M. D. Windham and I. A. Al-Shehbaz 2006 for detailed comparison). It is known thus far only from the type collection below Galena Summit in central Idaho.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Boechera rollinsiorum | name=Boechera rollinsiorum | ||
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|authority=Windham & Al-Shehbaz | |authority=Windham & Al-Shehbaz | ||
|rank=species | |rank=species | ||
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|publication year=2006 | |publication year=2006 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V7/V7_584.xml |
|tribe=Brassicaceae tribe Boechereae | |tribe=Brassicaceae tribe Boechereae | ||
|genus=Boechera | |genus=Boechera | ||
Latest revision as of 23:34, 5 November 2020
Perennials; long-lived; sexual; caudex woody. Stems usually 3–5 per caudex branch, arising from margin of rosette, elevated above ground surface on woody base, 1–2.5 dm, densely pubescent proximally, trichomes short-stalked, 2–4 (or 5)-rayed, 0.2–0.4 mm, moderately to sparsely pubescent distally. Basal leaves: blade oblanceolate, 3–5 mm wide, margins entire, ciliate proximally, trichomes (simple), to 0.6 mm, surfaces densely pubescent, trichomes short-stalked, 2–4 (or 5)-rayed, 0.15–0.4 mm. Cauline leaves: 5–9, not concealing stem; blade auricles 0.5–1 mm, surfaces of distalmost leaves sparsely to moderately pubescent. Racemes 5–11-flowered, usually unbranched. Fruiting pedicels descending, straight to slightly recurved, 4–6 mm, pubescent, trichomes appressed, branched. Flowers divaricate-ascending at anthesis; sepals pubescent; petals pale purple, 6–8 × 1.5–2 mm, glabrous; pollen ellipsoid. Fruits (immature) pendent, not appressed to rachis, not secund, straight, edges parallel; valves glabrous. Seeds not seen.
Phenology: Flowering Jun.
Habitat: Metamorphosed igneous gravel on steep slopes
Elevation: ca. 2100 m
Discussion
Boechera rollinsiorum shows superficial similarities to both B. glareosa and B. lasiocarpa (see M. D. Windham and I. A. Al-Shehbaz 2006 for detailed comparison). It is known thus far only from the type collection below Galena Summit in central Idaho.
Selected References
None.