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''Arctostaphylos imbricata'' is a species of manzanita known by the common name San Bruno Mountain manzanita. It is endemic to San Mateo County, California, where it is known only from six populations on San Bruno Mountain. Despite its rarity, this manzanita is not a federally listed endangered species because five of its six remaining populations are protected by the San Bruno Mountain Habitat Conservation Plan.〔(Center for Plant Conservation Profile )〕 This plant grows in the chaparral plant community. Like many other chaparral species, it requires wildfire for reproduction. Fire suppression in its native habitat is one threat to its survival. ==Description== ''Arctostaphylos imbricata'' is a small, spreading, matlike shrub forming flat tangles or mounds less than a meter in height. The branches are coated in long bristles tipped in resin glands. The light green, glandular leaves are round to oval with rough, bristly, dull surfaces and smooth or toothed edges. They are up to 4 centimeters long and 3 wide. The dense inflorescence is crowded with rounded, urn-shaped white flowers, each only 3 to 5 millimeters long. The fruit is a hairy, glandular drupe about 7 millimeters wide. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Arctostaphylos imbricata」の詳細全文を読む スポンサード リンク
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