Difference between revisions of "Amelanchier alnifolia var. pumila"

(Torrey & A. Gray) C. K. Schneider

Ill. Handb. Laubholzk. 1: 739. 1906.

Common names: Dwarf shadbush
Endemic
Basionym: Amelanchier canadensis var. pumila Torrey & A. Gray
Treatment appears in FNA Volume 9. Treatment on page 652. Mentioned on page 651.
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|elevation=2000–3400 m
 
|elevation=2000–3400 m
 
|distribution=Ariz.;Calif.;Colo.;Utah;Wyo.
 
|distribution=Ariz.;Calif.;Colo.;Utah;Wyo.
|discussion=<p>The most distinctive features of var. pumila are that its leaves, pedicels, sepals, and ovary apices are glabrous (with the exception of a few hairs on emerging leaves and a ring of hairs around the base of the styles in some plants), and its leaf teeth are relatively long and sharp-pointed. This variety appears to be restricted to higher elevations.</p>
+
|discussion=<p>The most distinctive features of <i></i>var.<i> pumila</i> are that its leaves, pedicels, sepals, and ovary apices are glabrous (with the exception of a few hairs on emerging leaves and a ring of hairs around the base of the styles in some plants), and its leaf teeth are relatively long and sharp-pointed. This variety appears to be restricted to higher elevations.</p>
 
|tables=
 
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|publication year=1906
 
|publication year=1906
 
|special status=Endemic
 
|special status=Endemic
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V9/V9_1120.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V9/V9_1120.xml
 
|subfamily=Rosaceae subfam. Amygdaloideae
 
|subfamily=Rosaceae subfam. Amygdaloideae
 
|tribe=Rosaceae tribe Gillenieae
 
|tribe=Rosaceae tribe Gillenieae

Revision as of 19:14, 18 September 2019

Shrubs, 1–2(–4) m. Stems 1–50, solitary or in colonies. Leaves: petiole (7–)11.9–19.1(–27) mm; blade orbiculate to oval, (14–)26–37(–50) × (18–)23–36(–43) mm, base usually cordate to truncate, sometimes ± cuneate, apex rounded or subtruncate, surfaces glabrous. Inflorescences (6 or)7–9(–12)-flowered, (24–)29–40(–47) mm. Pedicels proximalmost (8–)10–20(–27) mm. Flowers: sepals (2.7–)3.2–4(–4.5) mm; petals obovate to elliptic, (9–)10.9–11.5(–12.6) × (3–)3.8–5.2(–5.9) mm; ovary apex glabrous (or sparsely hairy with a ring of hairs at base of styles). Pomes 8–9 mm diam. 2n = 4x.


Phenology: Flowering May–Jun; fruiting Jul–Sep.
Habitat: Mountain slopes
Elevation: 2000–3400 m

Distribution

V9 1120-distribution-map.jpg

Ariz., Calif., Colo., Utah, Wyo.

Discussion

The most distinctive features of var. pumila are that its leaves, pedicels, sepals, and ovary apices are glabrous (with the exception of a few hairs on emerging leaves and a ring of hairs around the base of the styles in some plants), and its leaf teeth are relatively long and sharp-pointed. This variety appears to be restricted to higher elevations.

Selected References

None.

Lower Taxa

None.
Christopher S. Campbell +, Michael B. Burgess +, Kevin R. Cushman +, Eric T. Doucette +, Alison C. Dibble +  and Christopher T. Frye +
(Torrey & A. Gray) C. K. Schneider +
Amelanchier canadensis var. pumila +
Dwarf shadbush +
Ariz. +, Calif. +, Colo. +, Utah +  and Wyo. +
2000–3400 m +
Mountain slopes +
Flowering May–Jun +  and fruiting Jul–Sep. +
Ill. Handb. Laubholzk. +
Amelanchier alnifolia var. pumila +
Amelanchier alnifolia +
variety +