Download Copy a link to this page Cite this record

Polygonum hydropiper L.

Scientific name record
Names_Plants record source
This is a synonym
This record has collections
This record has descriptions

Click to collapse Details Info

Polygonum hydropiper L., Sp. Pl. 361 (1753)

Click to collapse Nomenclature Info

L.
L.
1753
361
ICN
Polygonum hydropiper L.
species
Polygonum hydropiper

Click to collapse Classification Info

hydropiper

Click to collapse Vernacular names Info

Click to collapse Descriptions Info

Polygonum hydropiper L.

Almost glabrous annual herb; stems erect or suberect, to c. 75 cm tall, often reddish; roots rather slender. Lvs on main stem similar to those on branches, subsessile or shortly petiolate. Lamina 1-12 × 0.3-2 cm, lanceolate or linear-lanceolate, bright or deep green, with small translucent glandular dots; margins ciliolate and ± undulate; base cuneate to attenuate; apex obtuse to acuminate. Ochreae to 2 cm long, reddish brown, truncate, with 0-few fringing bristles, ± flared at upper nodes. Racemes slender, spike-like, to c. 7 cm long, at least partly curving downwards, the lower fls often distant; pedicels short, enclosed by bracts at anthesis, later protruding. Perianth 1.5-3 mm long, prominently dotted with brownish glands, usually pink or rose, rarely white, accrescent; segments ± broad-elliptic, strongly imbricate. Nut 2.5-3 mm long, trigonous or biconvex, dark brown or black, finely granular and appearing dull to moderately shining.

Click to collapse Taxonomic concepts Info

Polygonum hydropiper L.
Polygonum hydropiper L.
Polygonum hydropiper L.
Polygonum hydropiper L.
Polygonum hydropiper L.
Polygonum hydropiper L.
Polygonum hydropiper L.

Click to collapse Collections Info

Polygonum hydropiper L.
New Zealand
South Auckland Land District
Polygonum hydropiper L.
United Kingdom

Click to collapse Metadata Info

e256d391-dc8a-49f1-9503-50665671f856
scientific name
Names_Plants
1 January 2000
9 October 2007
Click to go back to the top of the page
Top