Biology:Acaena caesiiglauca

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Short description: Species of flowering plant

Acaena caesiiglauca
Scientific classification edit
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 in Christchurch Botanic Gardens

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]

Taxonomy and etymology

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]

Description

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]

Ecology

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]

Distribution

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]

Herbarium sheet of Acaena caesiiglauca specimen.
Herbarium sheet of Acaena caesiiglauca specimen

References

Wikidata ☰ Q9571551 entry