Polygonum hydropiper L.
Details
Polygonum hydropiper L., Sp. Pl. 361 (1753)
Nomenclature
L.
L.
1753
361
ICN
Polygonum hydropiper L.
species
Polygonum hydropiper
Classification
Vernacular names
Descriptions
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.
Taxonomic concepts
Polygonum hydropiper L.
Polygonum hydropiper L.
Polygonum hydropiper L.
Polygonum hydropiper L.
Polygonum hydropiper L.
Collections
Metadata
e256d391-dc8a-49f1-9503-50665671f856
scientific name
Names_Plants
1 January 2000
9 October 2007