Polygonum persicaria L.
Details
Nomenclature
L.
L.
ICN
Polygonum persicaria L.
species
Polygonum persicaria
Classification
Vernacular names
Descriptions
Polygonum persicaria L.
Glabrous or glabrate, taprooted annual; stems erect to spreading, 0.1-1 m tall, often reddish, glabrous or with scattered antrorse hairs. Lvs on main stem similar to those on branches; petiole 2-12-(20) mm long. Lamina (1.2)-4-15 × 1.2-4 cm, lanceolate to linear-lanceolate, usually with a central dark blotch above, with scattered appressed hairs or more obviously hairy on midrib below, inconspicuously glandular-punctate, ciliate, entire; base cuneate; apex acute to acuminate. Ochreae to c. 1.5 cm long, fringed, often hairy, initially truncate, green or pinkish. Fls in erect, dense, spike-like, eglandular infls; spike usually not interrupted below, cylindric, sometimes very narrow and open, mostly terminal, to 4-(5) × 0.7-1.5 cm; peduncles eglandular; pedicels short, ± hidden amongst ochreae-like bracts; bracts always long-ciliate. Perianth 2-3 mm long, somewhat accrescent, eglandular, usually pale to deep pink, occasionally white; segments ± broad-elliptic, imbricate; veins straight or gently curved. Nuts 2-2.5 mm long, biconvex or trigonous with rounded margins, sometimes slightly biconcave, brownish black, shining.
Taxonomic concepts
Polygonum persicaria L.
Polygonum persicaria L.
Polygonum persicaria L.
Polygonum persicaria L.
Polygonum persicaria L.
Collections
Metadata
0810df6d-d835-43d7-b056-1d7d32fd4744
scientific name
Names_Plants
1 January 2000
9 October 2007