Difference between revisions of "Polygonum oxyspermum subsp. raii"

(Babington) D. A. Webb & Chater

Feddes Repert. Spec. Nov. Regni Veg. 68: 188. 1963.

Common names: Ray’s knotweed renouée de Ray
Basionym: Polygonum raii Babington Trans. Linn. Soc. London 17: 458. 1836
Treatment appears in FNA Volume 5. Treatment on page 554.
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|name=Polygonum raii
 
|name=Polygonum raii
 
|authority=Babington
 
|authority=Babington
 +
|rank=species
 
|publication_title=Trans. Linn. Soc. London
 
|publication_title=Trans. Linn. Soc. London
 
|publication_place=17: 458. 1836
 
|publication_place=17: 458. 1836
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|elevation=0-10 m
 
|elevation=0-10 m
 
|distribution=St. Pierre and Miquelon;N.B.;Nfld. and Labr. (Nfld.);N.S.;P.E.I.;Que.;Maine;Europe.
 
|distribution=St. Pierre and Miquelon;N.B.;Nfld. and Labr. (Nfld.);N.S.;P.E.I.;Que.;Maine;Europe.
|discussion=<p>Some sources consider <i></i></i>subsp.<i><i> raii</i> to be native in North America.</p>
+
|discussion=<p>Some sources consider <i></i>subsp.<i> raii</i> to be native in North America.</p>
 
|tables=
 
|tables=
 
|references=
 
|references=
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-->{{#Taxon:
 
-->{{#Taxon:
 
name=Polygonum oxyspermum subsp. raii
 
name=Polygonum oxyspermum subsp. raii
|author=
 
 
|authority=(Babington) D. A. Webb & Chater
 
|authority=(Babington) D. A. Webb & Chater
 
|rank=subspecies
 
|rank=subspecies
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|publication year=1963
 
|publication year=1963
 
|special status=
 
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V5/V5_1129.xml
+
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V5/V5_1129.xml
 
|subfamily=Polygonaceae subfam. Polygonoideae
 
|subfamily=Polygonaceae subfam. Polygonoideae
 
|genus=Polygonum
 
|genus=Polygonum

Revision as of 21:50, 16 December 2019

Leaves: ocrea not prominently veined, 7–10 mm, distal part disintegrating, nearly completely deciduous; blade bluish green, elliptic, 3.5–5 times as long as wide. Flowers: perianth (3.5–)4–5 mm; tepals overlapping, green with white or pink margins, obovate, apex flat, flared. Achenes with apex exserted 0.5–1.3(–1.8) mm from perianth, (3.5–)4–5 mm, 1.3–1.6 times as long as wide, ± smooth or finely striate-tubercled. 2n = 40.


Phenology: Flowering Jul–Oct.
Habitat: Coastal beaches, dunes, and shores
Elevation: 0-10 m

Distribution

V5 1129-distribution-map.gif

St. Pierre and Miquelon, N.B., Nfld. and Labr. (Nfld.), N.S., P.E.I., Que., Maine, Europe.

Discussion

Some sources consider subsp. raii to be native in North America.

Selected References

None.

Lower Taxa

None.
Mihai Costea +, François J. Tardif +  and Harold R. Hinds† +
(Babington) D. A. Webb & Chater +
Polygonum raii +
Ray’s knotweed +  and renouée de Ray +
St. Pierre and Miquelon +, N.B. +, Nfld. and Labr. (Nfld.) +, N.S. +, P.E.I. +, Que. +, Maine +  and Europe. +
0-10 m +
Coastal beaches, dunes, and shores +
Flowering Jul–Oct. +
Feddes Repert. Spec. Nov. Regni Veg. +
Introduced +
Polygonum oxyspermum subsp. raii +
Polygonum oxyspermum +
subspecies +