Class
Order
Family
Classification
Subordinate Taxa
Nomenclature
Scientific Name:
Bidens L., Sp. Pl. (1753)
Vernacular Name(s):
Beggars' ticks
Description
Annual or perennial herbs. Lvs opposite, simple and entire to pinnately or ternately dissected or compound. Capitula pedunculate, solitary or in loose cymes. Involucral bracts in 2 rows; outer row usually foliaceous; inner row membranous. Receptacle flat or slightly convex; scales present. Either outer florets ligulate, female or sterile, and white, yellow or pink, or all florets tubular and ☿. Achenes all similar, square or flattened in section but not winged; pappus of (0)–2–5 awns usually with retrorse barbs.
[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]
Biostatus
Exotic
| Category | Number |
|---|---|
| Exotic: Fully Naturalised | 3 |
| Exotic: Casual | 1 |
| Total | 4 |
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.
