| Acaena caesiiglauca | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Rosales |
| Family: | Rosaceae |
| Genus: | Acaena |
| Species: | A. caesiiglauca |
| Binomial name | |
| Acaena caesiiglauca (Bitter) Bergmans | |
Acaena caesiiglauca (common name: bidibid, [1] glaucous pirri-pirri-bur, [2] or silver-leafed New Zealand burr) is a species of Acaena endemic to New Zealand. [3]
The species was described in 1988 by C.J. Webb, W.R. Sykes, and P.J. Garnock-Jones. [4] The original combination was Acaena sanguisorbae subsp. caesiiglauca Bitter. [4]
The specific epithet, caesiiglauca, is derived from a combination of Latin meaning ‘lavender blue’ and Greek meaning ‘sea green’. [3]
Aceana caesiiglauca grow to a height of 2–4 inches and a spread of about 2 ft. The flowers consist of reddish burrs and its foliage is described as a silky bluish grey. [5]
A. caesiiglauca grows in tussock grassland between 600 and 1500 m. [6] It reproduces by dispersing its hypanthia, which are spiny and attach to animals in its environment. They may also be dispersed by wind or being eaten. [3]
A. caesiiglauca grows in the South Island where it is widespread but tends to grow east of the Southern Alps. [6] Herbarium specimens have been collected in Nelson, Canterbury, Otago and Southland. [1]
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