familyRosaceae
subfamilyRosaceae subfam. Rosoideae
genusPotentilla
speciesPotentilla anserina
subspeciesPotentilla anserina subsp. pacifica
Difference between revisions of "Potentilla anserina subsp. pacifica"
Ann. Bot. Fenn. 2: 104. 1965.
Common names: Pacific silverweed
EndemicIllustrated
Basionym: Potentilla pacifica Howell Fl. N.W. Amer., 179. 1898
Synonyms: Argentina occidentalis Rydberg A. pacifica (Howell) Rydberg P. anserina var. grandis Torrey & A. Gray P. egedei subsp. grandis (Torrey & A. Gray) Hultén P. egedei subsp. pacifica (Howell) L. A. Sergienko P. rolandii
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}}{{Treatment/ID/Special_status | }}{{Treatment/ID/Special_status | ||
|code=F | |code=F | ||
| − | |label= | + | |label=Illustrated |
}} | }} | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Potentilla pacifica | |name=Potentilla pacifica | ||
|authority=Howell | |authority=Howell | ||
| + | |rank=species | ||
| + | |publication_title=Fl. N.W. Amer., | ||
| + | |publication_place=179. 1898 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Argentina occidentalis | |name=Argentina occidentalis | ||
|authority=Rydberg | |authority=Rydberg | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=A. pacifica | |name=A. pacifica | ||
|authority=(Howell) Rydberg | |authority=(Howell) Rydberg | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=species |
| + | }} {{Treatment/ID/Synonym | ||
|name=P. anserina var. grandis | |name=P. anserina var. grandis | ||
|authority=Torrey & A. Gray | |authority=Torrey & A. Gray | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=variety |
| + | }} {{Treatment/ID/Synonym | ||
|name=P. egedei subsp. grandis | |name=P. egedei subsp. grandis | ||
|authority=(Torrey & A. Gray) Hultén | |authority=(Torrey & A. Gray) Hultén | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=subspecies |
| + | }} {{Treatment/ID/Synonym | ||
|name=P. egedei subsp. pacifica | |name=P. egedei subsp. pacifica | ||
|authority=(Howell) L. A. Sergienko | |authority=(Howell) L. A. Sergienko | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=subspecies |
| + | }} {{Treatment/ID/Synonym | ||
|name=P. rolandii | |name=P. rolandii | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Potentilleae;Potentilla;Potentilla sect. Pentaphylloides;Potentilla anserina;Potentilla anserina subsp. pacifica | |hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Potentilleae;Potentilla;Potentilla sect. Pentaphylloides;Potentilla anserina;Potentilla anserina subsp. pacifica | ||
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|elevation=0–150 m | |elevation=0–150 m | ||
|distribution=B.C.;N.B.;Nfld. and Labr.;N.S.;P.E.I.;Que.;Alaska;Calif.;Conn.;Maine;Mass.;N.H.;N.Y.;Oreg.;R.I.;Wash. | |distribution=B.C.;N.B.;Nfld. and Labr.;N.S.;P.E.I.;Que.;Alaska;Calif.;Conn.;Maine;Mass.;N.H.;N.Y.;Oreg.;R.I.;Wash. | ||
| − | |discussion=<p>Pacific and Atlantic populations of subsp. pacifica are widely separated geographically but are essentially the same morphologically, except for the high number of achenes in some west coast populations.</p> | + | |discussion=<p>Pacific and Atlantic populations of <i></i>subsp.<i> pacifica</i> are widely separated geographically but are essentially the same morphologically, except for the high number of achenes in some west coast populations.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Potentilla anserina subsp. pacifica | name=Potentilla anserina subsp. pacifica | ||
| − | |||
|authority=(Howell) Rousi | |authority=(Howell) Rousi | ||
|rank=subspecies | |rank=subspecies | ||
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|publication title=Ann. Bot. Fenn. | |publication title=Ann. Bot. Fenn. | ||
|publication year=1965 | |publication year=1965 | ||
| − | |special status=Endemic; | + | |special status=Endemic;Illustrated |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_184.xml |
|subfamily=Rosaceae subfam. Rosoideae | |subfamily=Rosaceae subfam. Rosoideae | ||
|tribe=Rosaceae tribe Potentilleae | |tribe=Rosaceae tribe Potentilleae | ||
Latest revision as of 22:54, 5 November 2020
Stems glabrous or sparsely hairy. Leaves erect, rarely horizontal or ascending, (3–)10–50(–75) cm; leaflets (4–)5–10(–15) per side, separate, rarely overlapping, teeth (4–)6–12(–16) per side, teeth apex acute to acuminate, rarely subacute, surfaces: abaxial with long hairs absent or sparse, on veins, cottony-crisped hairs dense, adaxial glabrous, rarely sparsely to densely hairy. Flowers 1–2.5(–3.5) cm diam.; epicalyx bractlets narrowly to broadly ovate-triangular, shorter than sepals, entire, rarely 2-fid or dentate; hypanthium patelliform (wider than deep) in fruit; petals not or rarely overlapping, elliptic; carpels (20–)50–200(–250). Achenes without dorsal groove. 2n = 28.
Phenology: Flowering summer.
Habitat: Salt and brackish marshes, clay and sandy seashores, maritime drift deposits
Elevation: 0–150 m
Distribution
B.C., N.B., Nfld. and Labr., N.S., P.E.I., Que., Alaska, Calif., Conn., Maine, Mass., N.H., N.Y., Oreg., R.I., Wash.
Discussion
Pacific and Atlantic populations of subsp. pacifica are widely separated geographically but are essentially the same morphologically, except for the high number of achenes in some west coast populations.
Selected References
None.
Lower Taxa
None.