Class
Family
Biennial herbs; stems prickly and often grooved, ± erect and branched above. Lvs opposite, crenate-serrate to entire, often prickly. Infl. a globose to cylindric capitulum; involucral bracts linear to lanceolate, each with a prominent apical spine; receptacular scales subtending each fl., spine-tipped. Involucel ± 4-angled, ending in a short ± 4-lobed cup. Calyx ciliate, persistent at fruiting. Corolla usually 4-merous, long-tubular, zygomorphic. Stamens 4. Fr. 4-angled, with appressed hairs.
[From: Webb et al. (1988) Flora of New Zealand. Volume 4.]
Category | Number |
---|---|
Exotic: Fully Naturalised | 1 |
Exotic: Casual | 1 |
Total | 2 |