| 词条 | Arctostaphylos densiflora |
| 释义 |
|image = Arctostaphylos densiflora - Regional Parks Botanic Garden, Berkeley, CA - DSC04346.JPG |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Ericales |familia = Ericaceae |genus = Arctostaphylos |species = A. densiflora |binomial = Arctostaphylos densiflora |binomial_authority = M.S.Baker }}{{commonscat|Arctostaphylos densiflora}} Arctostaphylos densiflora, known by the common name Vine Hill manzanita, is a very rare species of manzanita. It is endemic to Sonoma County, California, where it is known from only one extant population of 20 to 30 individual plants. These last wild members of the species are on land near Sebastopol which is owned and protected by the California Native Plant Society. In addition, there are five to ten plants of this manzanita taxon growing on private property about a mile away.[1] The local habitat is mostly chaparral on sandy shale soils. DescriptionArctostaphylos densiflora is a small shrub growing in low, spreading clumps under one meter in height. The shiny green leaves are oval to widely lance-shaped and less than three centimeters long. It bears inflorescences of light to bright pink urn-shaped flowers. The fruit is a drupe about half a centimeter wide. Species differentiationA. densiflora likely appeared about 1.5 million years ago, although the Arctostaphylos genus itself arose in the Miocene era.[2]See also
References1. ^Center for Plant Conservation {{webarchive|url=https://web.archive.org/web/20090819052517/http://www.centerforplantconservation.org/ASP/CPC_ViewProfile.asp?CPCNum=213 |date=2009-08-19 }} 2. ^C. Michael Hogan & Sarah Gordon. 2014. Arctostaphylos densiflora {{webarchive |url=https://web.archive.org/web/20140521202546/http://www.eoearth.org/view/article/150219/ |date=May 21, 2014 }}. ed. J. Lee. Encyclopedia of Earth. National Council for Science & Environment. Washington DC External links
8 : Arctostaphylos|Endemic flora of California|Endemic flora of the San Francisco Bay Area|Natural history of the California chaparral and woodlands|Natural history of Sonoma County, California|Plants described in 1932|Garden plants of North America|Drought-tolerant plants |
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