Difference between revisions of "Potentilla gracilis var. elmeri"
Fl. Calif. 2: 189. 1936.
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|name=P. bakeri | |name=P. bakeri | ||
|authority=Rydberg | |authority=Rydberg | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=P. flabelliformis var. inyoensis | |name=P. flabelliformis var. inyoensis | ||
|authority=Jepson | |authority=Jepson | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=P. pectinisecta | |name=P. pectinisecta | ||
|authority=Rydberg | |authority=Rydberg | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=P. pectinisecta var. comosa | |name=P. pectinisecta var. comosa | ||
|authority=(Rydberg) Soják | |authority=(Rydberg) Soják | ||
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|elevation=1300–3300 m | |elevation=1300–3300 m | ||
|distribution=Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wyo. | |distribution=Calif.;Colo.;Idaho;Mont.;Nev.;Oreg.;Utah;Wyo. | ||
| − | |discussion=<p>Variety elmeri is the characteristic representative of Potentilla gracilis in the Great Basin, distinguished by deeply and evenly pectinate-toothed leaflets with a very narrow undivided medial blade. Leaflet surfaces are only somewhat dissimilar, most often grayish with abundant crisped (versus cottony) hairs abaxially. Basal leaves tend to be shorter than in other varieties, and petioles are most often tightly strigose. Intergradation with other varieties is common; populations beyond the Great Basin are problematic.</p> | + | |discussion=<p>Variety elmeri is the characteristic representative of <i>Potentilla gracilis</i> in the Great Basin, distinguished by deeply and evenly pectinate-toothed leaflets with a very narrow undivided medial blade. Leaflet surfaces are only somewhat dissimilar, most often grayish with abundant crisped (versus cottony) hairs abaxially. Basal leaves tend to be shorter than in other varieties, and petioles are most often tightly strigose. Intergradation with other varieties is common; populations beyond the Great Basin are problematic.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1936 | |publication year=1936 | ||
|special status=Endemic;Selected by author to be illustrated | |special status=Endemic;Selected by author to be illustrated | ||
| − | |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/V9/V9_227.xml |
|subfamily=Rosaceae subfam. Rosoideae | |subfamily=Rosaceae subfam. Rosoideae | ||
|tribe=Rosaceae tribe Potentilleae | |tribe=Rosaceae tribe Potentilleae | ||
Revision as of 18:15, 18 September 2019
Stems (1.5–)2–6(–8) dm. Basal leaves: petiole 2–15(–25) cm, long hairs common to dense, usually tightly appressed, sometimes ascending to spreading, 0.5–2.5 mm, stiff, crisped hairs absent or sparse, cottony hairs absent, glands absent or sparse; leaflets 5–7, usually ± overlapping, largest mostly oblanceolate to narrowly obovate, 2–6(–9) × 1.5–2.5 cm, margins flat to ± revolute, distal 3/4 to nearly whole length evenly incised 3/4+ to midvein, undivided medial blade 2–4 mm wide, teeth (5–)6–10 per side, not secondarily toothed, linear, 3–13(–20) mm, surfaces usually ± dissimilar, abaxial grayish to whitish, long hairs abundant to dense, crisped hairs sparse to abundant, cottony hairs usually absent, glands absent or sparse, adaxial green to grayish, long hairs ± abundant, rarely dense, crisped hairs absent or sparse, cottony hairs absent, glands absent or sparse. Flowers: epicalyx bractlets 2.5–5 × 0.5–1.2(–1.5) mm; hypanthium 3.5–5 mm diam.; petals 4–7(–8) × (3–)5–10 mm; carpels (20–)30–50, styles 1.5–3 mm. Achenes 1–1.3 mm. 2n = 42.
Phenology: Flowering summer.
Habitat: Vernally moist meadows, often semialkaline, dry gravelly flats and slopes, in sagebrush communities, aspen and conifer woodlands
Elevation: 1300–3300 m
Distribution
Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wyo.
Discussion
Variety elmeri is the characteristic representative of Potentilla gracilis in the Great Basin, distinguished by deeply and evenly pectinate-toothed leaflets with a very narrow undivided medial blade. Leaflet surfaces are only somewhat dissimilar, most often grayish with abundant crisped (versus cottony) hairs abaxially. Basal leaves tend to be shorter than in other varieties, and petioles are most often tightly strigose. Intergradation with other varieties is common; populations beyond the Great Basin are problematic.
Selected References
None.