| 词条 | Libocedrus plumosa |
| 释义 |
| image = LibocedrusPlumosa.jpg | image_caption = Foliage showing flat sprays | status = NT | status_system = IUCN3.1 | status_ref = [1] | genus = Libocedrus | species = plumosa | authority = (D.Don) Sarg. }} Libocedrus plumosa, with the common name kawaka, is a species of Libocedrus that is endemic to New Zealand. DistributionThe tree is native to the North Island; and locally at the north end of the South Island, near Nelson (41° S). It grows from sea level up to {{convert|600|m|ft}} in altitude, in temperate rainforests. It is an IUCN Red List Near threatened species, that is endangered by habitat loss.[2][3] Description{{stack|}}Libocedrus plumosa is an evergreen coniferous tree growing to {{convert|30|-|35|m|ft}} tall, with a trunk up to {{convert|3|m|ft}} diameter. The foliage is arranged in flattened sprays; the leaves are scale-like, arranged in opposite decussate pairs on the shoots; the facial leaves are 1–2 mm long and 1 mm broad, and the lateral leaves distinctly larger, 2–5 mm long and 1.5–2 mm broad. The seed cones are cylindrical, 12–18 mm long, with four scales each with a prominent curved spine-like bract; they are arranged in two opposite decussate pairs around a small central columella; the outer pair of scales is small and sterile, the inner pair large, each bearing two winged seeds. They are mature about six to eight months after pollination. The pollen cones are 3–5 mm long.[2] {{clear|left}} CultivationThe kawaka has been planted as an ornamental tree in several parts of the British Isles, including as far north as Castlewellan, Northern Ireland.[4] References1. ^{{cite journal |author=Farjon, A. |author2=Carter, G. |last-author-amp=yes |title=Libocedrus plumosa |journal=The IUCN Red List of Threatened Species |volume=2013 |page=e.T34146A2847823 |publisher=IUCN |year=2013 |url=http://www.iucnredlist.org/details/34146/0 |doi=10.2305/IUCN.UK.2013-1.RLTS.T34146A2847823.en |access-date=8 November 2017}} {{Commons category|position=left|Libocedrus plumosa}}{{Taxonbar|from=Q4069268}}2. ^1 Farjon, A. (2005). Monograph of Cupressaceae and Sciadopitys. Royal Botanic Gardens, Kew. {{ISBN|1-84246-068-4}} 3. ^Conifer Specialist Group 2000: Libocedrus plumosa 4. ^{{cite web|url=http://www.rhs.org.uk/NR/rdonlyres/831C8FEF-445C-4FA3-8951-AA257A07F238/0/halfhardytrees.pdf |title=Libocedrus plumosa in the British Isles |deadurl=yes |archiveurl=https://web.archive.org/web/20090303214730/http://www.rhs.org.uk/NR/rdonlyres/831C8FEF-445C-4FA3-8951-AA257A07F238/0/halfhardytrees.pdf |archivedate=March 3, 2009 }} 8 : Libocedrus|Endemic flora of New Zealand|Flora of the North Island|Flora of the South Island|Trees of New Zealand|Trees of mild maritime climate|Near threatened flora of Oceania|Taxonomy articles created by Polbot |
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