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Polygonum arenastrum Boreau

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Exotic
Wild
New Zealand
Political Region

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Boreau
Boreau
1857
ICN
Polygonum arenastrum Boreau
species
Polygonum arenastrum

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arenastrum

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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.

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Polygonum arenastrum Boreau
New Zealand
Polygonum arenastrum Boreau
New Zealand
Canterbury Land District
Polygonum arenastrum Boreau
New Zealand
Hawke's Bay Land District
Polygonum arenastrum Boreau
New Zealand
Nelson Land District
Polygonum arenastrum Boreau
New Zealand
North Auckland Land District
Polygonum arenastrum Boreau
New Zealand
Otago Land District
Polygonum arenastrum Boreau
New Zealand
Taranaki Land District
Polygonum arenastrum Boreau
New Zealand
Wellington Land District

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985fb05f-3992-4b65-8349-ff42de0c3320
scientific name
Names_Plants
1 January 2000
8 April 2013
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