Difference between revisions of "Boechera harrisonii"
Harvard Pap. Bot. 11: 266. 2007.
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| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Arabis harrisonii | |name=Arabis harrisonii | ||
|authority=S. L. Welsh | |authority=S. L. Welsh | ||
| + | |rank=species | ||
| + | |publication_title=in S. L. Welsh et al., Utah Fl. ed. | ||
| + | |publication_place=3, 256. 2003 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Boechera microphylla var. harrisonii | |name=Boechera microphylla var. harrisonii | ||
|authority=(S. L. Welsh) N. H. Holmgren | |authority=(S. L. Welsh) N. H. Holmgren | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Brassicaceae;Brassicaceae tribe Boechereae;Boechera;Boechera harrisonii | |hierarchy=Brassicaceae;Brassicaceae tribe Boechereae;Boechera;Boechera harrisonii | ||
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name=Boechera harrisonii | name=Boechera harrisonii | ||
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|authority=(S. L. Welsh) Windham & Al-Shehbaz | |authority=(S. L. Welsh) Windham & Al-Shehbaz | ||
|rank=species | |rank=species | ||
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|publication year=2007 | |publication year=2007 | ||
|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_536.xml |
|tribe=Brassicaceae tribe Boechereae | |tribe=Brassicaceae tribe Boechereae | ||
|genus=Boechera | |genus=Boechera | ||
Latest revision as of 22:34, 5 November 2020
Perennials; long-lived; (some-what cespitose); apomictic; caudex often woody. Stems usually 3–7 per caudex branch, arising from margin of rosette near ground surface, 0.5–2.5 dm, usually sparsely pubescent proximally, rarely glabrous, trichomes short-stalked, 2- or 3-rayed, 0.06–0.2 mm, glabrous distally. Basal leaves: blade narrowly oblanceolate, 2–4 mm wide, margins entire or somewhat dentate, ciliate near petiole base, trichomes (simple), to 0.5 mm, surfaces sparsely pubescent, trichomes short-stalked, 2–5-rayed, 0.1–0.25 mm. Cauline leaves: 3–7, not concealing stem; blade auricles 0.5–1.5 mm, surfaces of distalmost leaves glabrous. Racemes 5–12-flowered, usually unbranched. Fruiting pedicels divaricate-ascending, straight, 8–12 mm, glabrous. Flowers ascending at anthesis; sepals pubescent; petals lavender, 5–7.5 × 0.8–1.5 mm, glabrous; pollen spheroid. Fruits usually divaricate-ascending, rarely nearly horizontal, not appressed to rachis, not secund, curved to straight, edges parallel, 3–4.7 cm × 1–1.5 mm; valves glabrous; ovules 64–86 per ovary; style 0.2–0.5 mm. Seeds uniseriate, 1.1–1.3 × 0.8–1.1 mm; wing continuous, 0.08–0.1 mm wide.
Phenology: Flowering May–Jun.
Habitat: Limestone and quartzite cliffs
Elevation: 1500-1600 m
Discussion
Morphological evidence suggests that Boechera harrisonii is an apomictic species that arose through hybridization between B. microphylla and B. perennans (see M. D. Windham and I. A. Al-Shehbaz 2007 for detailed comparison). Boechera harrisonii is known only from Utah and Wasatch counties in north-central Utah.
Selected References
None.