familyPolygonaceae
subfamilyPolygonaceae subfam. Polygonoideae
genusPolygonum
sectionPolygonum sect. Polygonum
speciesPolygonum oxyspermum
subspeciesPolygonum oxyspermum subsp. oxyspermum
Difference between revisions of "Polygonum oxyspermum subsp. oxyspermum"
Synonyms: Polygonum acadiense Fernald
Treatment appears in FNA Volume 5. Treatment on page 554.
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|subfamily=Polygonaceae subfam. Polygonoideae | |subfamily=Polygonaceae subfam. Polygonoideae | ||
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Revision as of 18:36, 18 September 2019
Leaves: ocrea prominently veined, (6.5–)8–12 mm, distal part disintegrating, veins persistent, brown; blade green, narrowly elliptic to lanceolate, 5–8 times as long as wide. Flowers: perianth 3.5–5.5 mm; tepals slightly overlapping, green with pink margins, oblong to obovate, apex flat, flared. Achenes with apex exserted 1–2.5 mm from perianth, 4.1–5.5(–6.5) mm, 1.5–2.6 times as long as wide, ± smooth.
Phenology: Flowering Jul–Oct.
Habitat: Coastal beaches, dunes, and shores
Elevation: 0-10 m
Discussion
Selected References
None.
Lower Taxa
None.