Classification
 Nomenclature
Scientific Name:
Helianthus L., Sp. Pl. 904-906 (1753)
Vernacular Name(s):
sunflower
 Description

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.

[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]

 Biostatus
Exotic
Number of species in New Zealand within Helianthus L.
CategoryNumber
Exotic: Fully Naturalised3
Total3
 Bibliography
Linnaeus, C. 1753: Species Plantarum. Impensis Laurentii Salvii, Stockholm.
Mabberley, D.J. 2008: Mabberley's plant book, a portable dictionary of plants, their classification and uses. Edition 3. Cambridge University Press.