Biology:Carex berggrenii
| Carex berggrenii | |
|---|---|
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| AM AK330997 | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Cyperaceae |
| Genus: | Carex |
| Species: | C. berggrenii
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| Binomial name | |
| Carex berggrenii | |
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| Occurrence data from AVH | |
Carex berggrenii, common name Berggren's Sedge, is a species of sedge (in the Cyperaceae family). It is endemic to New Zealand, being found on both the North and the South Islands.[4]
Description
It is a small, tufted, dark red-purple or orange-red sedge. Its smooth culms (circular in cross-section) are 15-30 mm long are flattened above, and almost enclosed by light brown sheaths. The linear, almost flat leaves are 30-60 mm by 1-2.5-3 mm, with distinct nerves, and blunt apices. The terminal spike is male (on a peduncle) with the remaining sessile (or almost sessile) spikes being female, and crowded around the base of the male spike. The bracts which subtend the inflorescence are longer than it.[4]
It flowers from October to February and fruits from October to June, [4] and the nuts are dispersed by granivory and wind.[6]
Distribution & habitat
It is found in the Central Ranges of the North Island. In the South Island it is found generally easterly from Lake Tennyson south. It is a montane to subalpine wetland species growing on the margins of lakes and streams.[4]
Conservation status
Assessments under the New Zealand Threat Classification System (NZTCS), declared it to be "At Risk – Naturally Uncommon" (NU) in 2013, and in 2017 to be "At Risk - Declining" (Dec).[1]
Gallery
AM AK330996-2
AM AK330996-3
Isolectotype: AM AK199699-1
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References
- ↑ 1.0 1.1 de Lange, P.J. et al."Conservation status of New Zealand indigenous vascular plants, 2017". 2017. p. 9. https://www.doc.govt.nz/globalassets/documents/science-and-technical/nztcs22entire.pdf.
- ↑ "NZOR Name Details - Carex berggrenii Petrie". http://www.nzor.org.nz/names/3f331a6c-6f13-4028-b0d6-f287b263096c.
- ↑ Petrie, D. (1885) Art. XLVII.—Description of New Species of Native Plants, Trans. & Proc. New Zealand Inst. 18: 297
- ↑ 4.0 4.1 4.2 4.3 4.4 "Carex berggrenii | New Zealand Plant Conservation Network". http://nzpcn.org.nz/flora_details.aspx?ID=230.
- ↑ "Carex berggrenii Petrie | Plants of the World Online | Kew Science". http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:298802-1.
- ↑ Thorsen, M.J.; Dickinson, K.J.M.; Seddon, P.J. (2009). "Seed dispersal systems in the New Zealand flora". Perspectives in Plant Ecology, Evolution and Systematics 11 (4): 285–309. doi:10.1016/j.ppees.2009.06.001. ISSN 1433-8319.
External links
Wikidata ☰ Q2409159 entry
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