Helianthus L.
Details
Biostatus
Nomenclature
L.
L.
1753
904-906
ICN
Helianthus L.
genus
Helianthus
Classification
Vernacular names
Descriptions
Helianthus L.
Annual or perennial herbs. Lvs opposite below, often alternate above, simple, entire or serrate, pinnately veined. Capitula pedunculate, solitary or in loose corymbs. Involucral bracts in 2-several rows, imbricate, foliaceous. Receptacle flat or convex; scales present. Outer florets sterile, ligulate, yellow. Inner florets ☿, tubular. Achenes all similar, compressed, not winged but usually with 2 distinct and 2 indistinct angles; pappus 0 or of 2 or more readily caducous scales, rarely small persistent scales also present.
Taxonomic concepts
Metadata
54f084dd-51ef-44cc-bbb9-ddccfff797b2
scientific name
Names_Plants
1 January 2000
13 August 2008