Polygonum arenastrum Boreau
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Details
Polygonum arenastrum Boreau (1857)
Polygonum arenastrum Boreau
Nomenclature
Boreau
Boreau
1857
ICN
Polygonum arenastrum Boreau
species
Polygonum arenastrum
Classification
Vernacular names
Synonyms
Descriptions
Polygonum arenastrum Boreau
Glabrous annual, prostrate or decumbent, often forming dense leafy mats; stems to c. 70 cm long; taproot fairly stout. Lvs of young and main stems similar or slightly > those of branches, subsessile or very shortly petiolate. Lamina 7-15 × 2-6 mm, narrow-elliptic to elliptic or elliptic-oblong, sometimes broader in very small-leaved plants, green, entire; lateral veins evident beneath; base cuneate to rounded; apex obtuse to subacute; apical branch lvs sometimes < 5 mm long. Ochreae initially 2-4 mm long, silvery-hyaline, ± acute, often tinged pink, becoming brown and lacerate. Fls 1-3-(6) in fascicles, extending almost to base of plant; pedicels short, enclosed by ochreae. Perianth 2-3 mm long, usually united at anthesis for ?-1/2 length; segments imbricate, ± oblong, glabrous, accrescent; margins and apex generally white, sometimes rose. Nut 1.7-2.5 mm long, generally ovoid but ranging from ± biconvex to ± trigonous, dark reddish brown, granular but ± shining, enclosed in perianth.
Taxonomic concepts
Polygonum aequale Lindm. 1912
Polygonum arenastrum Boreau
Polygonum arenastrum Boreau
Polygonum arenastrum Boreau
Polygonum aviculare subsp. depressum (Meisn.) Arcang.
Polygonum aviculare subsp. depressum (Meisn.) Arcang.
Polygonum arenastrum Boreau
Collections
Metadata
985fb05f-3992-4b65-8349-ff42de0c3320
scientific name
Names_Plants
1 January 2000
8 April 2013