Difference between revisions of "Boechera quebecensis"
Harvard Pap. Bot. 12: 246. 2007.
FNA>Volume Importer |
FNA>Volume Importer |
||
| Line 26: | Line 26: | ||
|elevation=0-300 m | |elevation=0-300 m | ||
|distribution=Que. | |distribution=Que. | ||
| − | |discussion=<p>Morphological evidence suggests that Boechera quebecensis is an apomictic species that arose through hybridization between B. holboellii and B. stricta; it is most likely to be confused with B. grahamii (see M. D. Windham and I. A. Al-Shehbaz 2007b for detailed comparison).</p> | + | |discussion=<p>Morphological evidence suggests that <i>Boechera quebecensis</i> is an apomictic species that arose through hybridization between <i>B. holboellii</i> and <i>B. stricta</i>; it is most likely to be confused with <i>B. grahamii</i> (see M. D. Windham and I. A. Al-Shehbaz 2007b for detailed comparison).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 50: | Line 50: | ||
|publication year=2007 | |publication year=2007 | ||
|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/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V7/V7_578.xml |
|tribe=Brassicaceae tribe Boechereae | |tribe=Brassicaceae tribe Boechereae | ||
|genus=Boechera | |genus=Boechera | ||
Revision as of 18:58, 18 September 2019
Biennials or perennials; short-lived; apomictic; caudex present or absent. Stems usually 1 per caudex branch, arising from center of rosette near ground surface, 1–4.5 dm, densely pubescent proximally, trichomes sessile, 2–4-rayed, 0.15–0.5 mm, glabrous distally. Basal leaves: blade oblanceolate, 5–15 mm wide, margins denticulate, ciliate proximally, trichomes (simple), to 1 mm, surfaces moderately pubescent, trichomes subsessile, (2- or) 3–7-rayed, 0.1–0.3 mm. Cauline leaves: 4–15, not concealing stem; blade auricles 1–3.5 mm, surfaces of distalmost leaves glabrous. Racemes 11–41-flowered, usually unbranched. Fruiting pedicels horizontal to slightly descending, curved to straight, 3–8(–14) mm, glabrous or with some subappressed, branched trichomes. Flowers divaricate at anthesis; sepals pubescent; petals white, 6–7 × 1–2 mm, glabrous; pollen spheroid. Fruits horizontal to slightly descending, not appressed to rachis, secund, straight, edges parallel, 3–6 cm × 1.5–2 mm; valves glabrous; ovules 56–94 per ovary. Seeds uniseriate, 1.2–1.5 × 1–1.3 mm; wing continuous, 0.1–0.15 mm wide.
Phenology: Flowering Jun–Jul.
Habitat: Calcareous rock outcrops and talus slopes
Elevation: 0-300 m
Discussion
Morphological evidence suggests that Boechera quebecensis is an apomictic species that arose through hybridization between B. holboellii and B. stricta; it is most likely to be confused with B. grahamii (see M. D. Windham and I. A. Al-Shehbaz 2007b for detailed comparison).
Selected References
None.