Polygonum orientale L.
Details
Nomenclature
L.
L.
1753
362
ICN
Polygonum orientale L.
species
Polygonum orientale
Classification
Vernacular names
Descriptions
Polygonum orientale L.
Hairy, fibrous-rooted annual with erect stems 20-150-(250) cm tall. Lvs on main stem similar to those on branches; petiole to c. 10 cm long, densely hispid. Lamina 7-25 × 4-17 cm, ovate, entire, with margin and veins densely hispid above and below, otherwise hairs sparser; base rounded to cordate, broadly cuneate on infl. lvs; apex cuspidate. Ochreae c. 2 cm long on main part of stem, green, with apical lobes prominently setose. Infl. a large open panicle with densely hairy branches terminating in dense pendulous spikes (1)-3-8 cm long; pedicels to 5 mm long, enclosed by bracts until anthesis; bracts 4-6 mm long, scarious, with appressed hairs, densely ciliate. Perianth 3-5 mm long, crimson in bud, somewhat paler at anthesis, accrescent, eglandular; segments broad-ovate to broad-elliptic, imbricate. Nut c. 4 mm long, broad-ovoid and ± biconvex, glossy black, with a shallow depression in the middle on each side.
Taxonomic concepts
Polygonum orientale L.
Polygonum orientale L.
Metadata
96ae4ece-2fa6-464b-9f8b-b1060825ef6e
scientific name
Names_Plants
1 January 2000
24 October 2007