Class
Order
Family
Classification
Subordinate Taxa
Nomenclature
Scientific Name:
Helenium L., Sp. Pl. 886 (1753)
Vernacular Name(s):
Sneezeweed; Sneezewort
Description
Annual or perennial herbs. Lvs alternate, simple, entire or serrate, often decurrent. Capitula pedunculate, solitary or in loose cymes. Involucral bracts in 2–3 rows, foliaceous or membranous. Receptacle convex, ovoid, or conic; scales 0. Outer florets usually ♀, sometimes sterile, ligulate, usually yellow. Inner florets ☿, tubular, sometimes all florets tubular and ligules 0. Achenes all similar, not compressed, 4–5-angled, narrowed to base, ribbed, often hairy on ribs and angles; pappus of 5–10, often aristate and laciniate scales.
[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]
Biostatus
Exotic
| Category | Number |
|---|---|
| Exotic: Fully Naturalised | 1 |
| Exotic: Casual | 1 |
| Total | 2 |
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.
