Difference between revisions of "Saxifraga hirculus"
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|name=Hirculus prorepens | |name=Hirculus prorepens | ||
|authority=(Fischer ex Sternberg) Á. Löve & D. Löve | |authority=(Fischer ex Sternberg) Á. Löve & D. Löve | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Leptasea hirculus | |name=Leptasea hirculus | ||
|authority=(Linnaeus) Small | |authority=(Linnaeus) Small | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Saxifraga hirculus subsp. coloradensis | |name=Saxifraga hirculus subsp. coloradensis | ||
|authority=Hedberg | |authority=Hedberg | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Saxifraga hirculus subsp. compacta | |name=Saxifraga hirculus subsp. compacta | ||
|authority=Hedberg | |authority=Hedberg | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Saxifraga hirculus subsp. propinqua | |name=Saxifraga hirculus subsp. propinqua | ||
|authority=(R. Brown) Á. Löve & D. Löve | |authority=(R. Brown) Á. Löve & D. Löve | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Saxifraga hirculus var. propinqua | |name=Saxifraga hirculus var. propinqua | ||
|authority=(R. Brown) Simmons | |authority=(R. Brown) Simmons | ||
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|elevation=0-4000 m | |elevation=0-4000 m | ||
|distribution=Greenland;B.C.;Man.;N.W.T.;Nunavut;Ont.;Que.;Yukon;Alaska;Colo.;Mont.;N.Mex.;Utah;Eurasia;Atlantic Islands (Iceland;Spitsbergen). | |distribution=Greenland;B.C.;Man.;N.W.T.;Nunavut;Ont.;Que.;Yukon;Alaska;Colo.;Mont.;N.Mex.;Utah;Eurasia;Atlantic Islands (Iceland;Spitsbergen). | ||
| − | |discussion=<p>On the basis of a morphologic and cytologic study, O. Hedberg (1992) recognized four subspecies in Saxifraga hirculus: subsp. propinqua (2n = 16, 24), nearctic (Labrador and northwestern Greenland to Alaska); subsp. coloradoensis (2n = 16), Colorado; subsp. hirculus (2n = 32), circumboreal (Ontario to Alaska in North America); and subsp. compacta (2n = 32), mostly Arctic Eurasia, Atlantic Islands (Iceland, Spitsbergen), eastern Greenland, and Alaska. Nonetheless, we are not recognizing subspecies (see also P. K. Holmgren and N. H. Holmgren 1997); further research is needed to determine their validity.</p> | + | |discussion=<p>On the basis of a morphologic and cytologic study, O. Hedberg (1992) recognized four subspecies in <i>Saxifraga hirculus</i>: subsp. propinqua (2n = 16, 24), nearctic (Labrador and northwestern Greenland to Alaska); subsp. coloradoensis (2n = 16), Colorado; subsp. hirculus (2n = 32), circumboreal (Ontario to Alaska in North America); and subsp. compacta (2n = 32), mostly Arctic Eurasia, Atlantic Islands (Iceland, Spitsbergen), eastern Greenland, and Alaska. Nonetheless, we are not recognizing subspecies (see also P. K. Holmgren and N. H. Holmgren 1997); further research is needed to determine their validity.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year= | |publication year= | ||
|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/V8/V8_270.xml |
|genus=Saxifraga | |genus=Saxifraga | ||
|species=Saxifraga hirculus | |species=Saxifraga hirculus | ||
Revision as of 18:05, 18 September 2019
Plants loosely tufted, not stoloniferous or sometimes shortly so, rhizomatous, caudex present or not. Leaves basal and cauline, (distal clasping); petiole absent on distal leaves, otherwise ± flattened, 3–20(–35) mm; blade linear or linear-oblanceolate to spatulate, unlobed, (5–)10–30 mm, thin to slightly fleshy, margins entire, eciliate or sparsely reddish brown-ciliate, (with apical nonsecreting hydathode), apex acuminate or acute, surfaces glabrous or sparsely reddish brown-villous. Inflorescences 2(–4)-flowered cymes, sometimes solitary flowers, (flowers initially nodding), 4–30(–35) cm, sparsely to ± densely reddish brown-villous; bracts sessile. Flowers: sepals ascending to spreading, reflexed in fruit, (sometimes purplish), triangular, margins reddish brown-ciliate, surfaces glabrous (rarely reddish brown-hairy); petals yellow, often drying cream, often proximally orange-spotted, elliptic to oblong or obovate, 6–18 mm, 2+ times longer than sepals; ovary superior. 2n = 16, 24, 32.
Phenology: Flowering summer.
Habitat: Wet, usually mossy, arctic or alpine tundra, wet alpine meadows
Elevation: 0-4000 m
Distribution
Greenland, B.C., Man., N.W.T., Nunavut, Ont., Que., Yukon, Alaska, Colo., Mont., N.Mex., Utah, Eurasia, Atlantic Islands (Iceland, Spitsbergen).
Discussion
On the basis of a morphologic and cytologic study, O. Hedberg (1992) recognized four subspecies in Saxifraga hirculus: subsp. propinqua (2n = 16, 24), nearctic (Labrador and northwestern Greenland to Alaska); subsp. coloradoensis (2n = 16), Colorado; subsp. hirculus (2n = 32), circumboreal (Ontario to Alaska in North America); and subsp. compacta (2n = 32), mostly Arctic Eurasia, Atlantic Islands (Iceland, Spitsbergen), eastern Greenland, and Alaska. Nonetheless, we are not recognizing subspecies (see also P. K. Holmgren and N. H. Holmgren 1997); further research is needed to determine their validity.
Selected References
None.