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・ Euphorbia cyparissias
・ Euphorbia damarana
・ Euphorbia decaryi
・ Euphorbia decidua
・ Euphorbia decorsei
・ Euphorbia delphinensis
・ Euphorbia deltoidea
・ Euphorbia dendroides
・ Euphorbia denisiana
・ Euphorbia denisii
・ Euphorbia dentata
・ Euphorbia deppeana
・ Euphorbia didiereoides
・ Euphorbia doloensis
・ Euphorbia duranii
Euphorbia eleanoriae
・ Euphorbia elegans
・ Euphorbia elliotii
・ Euphorbia emirnensis
・ Euphorbia ensifolia
・ Euphorbia enterophora
・ Euphorbia epiphylloides
・ Euphorbia epithymoides
・ Euphorbia eriantha
・ Euphorbia erythroxyloides
・ Euphorbia esula
・ Euphorbia famatamboay
・ Euphorbia fendleri
・ Euphorbia fianarantsoae
・ Euphorbia fiherenensis


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Euphorbia eleanoriae : ウィキペディア英語版
Euphorbia eleanoriae

''Euphorbia eleanoriae''〔(GRIN Species Profile: ''E. eleanoriae'' )〕 is a rare species of flowering plant in the euphorb family known by the common name Nā Pali sandmat. It is endemic to Kauai, Hawaii. Like other native Hawaiian euphorbs it is called ''akoko'' locally. This plant was only discovered in 1992〔(The Nature Conservancy )〕 and described to science in 1996 as ''Chamaesyce eleanoriae''.〔Lorence, D. H. and W. L. Wagner. (1996). A new species of ''Chamaesyce'' section ''Sclerophyllae'' (Euphorbiaceae) from Kaua'i. ''Novon'' 6:1 68-71.〕 At that time there were fewer than 500 plants known, all occurring in small populations scattered across the sheer cliffs along the Nā Pali Coast of Kauai.〔USFWS. (Determination of endangered status for 48 species on Kauai and designation of critical habitat; Final rule. ) ''Federal Register'' April 13, 2010.〕 By 2001 the total population had already dropped; only three populations were found, for a total of fewer than 50 plants.〔 The plant was federally listed as an endangered species of the United States in 2010.〔
This is a shrub growing up to about 40 centimeters in maximum height. It is intricately branched into brittle red or green twigs. The leaves have oval blades up to 2 centimeters long by 1.4 wide, and pale green in color with reddish edges. The inflorescence is a small cyathium about 3 millimeters long with white appendages each less than 3 millimeters wide.
This rare plant grows on basalt cliffs and other windy coastal rocky slopes at elevations between 270 and 1036 meters. It inhabits mesic forests dominated by ōhia lehua (''Metrosideros polymorpha'') and lama (''Diospyros sandwicensis''), ''M. polymorpha''-dominated cliff-side and mesic shrublands, and dry cliffs dominated by kāwelu (''Eragrostis variabilis'').〔 Threats to its existence include feral goats and invasive plant species such as Santa Barbara daisy (''Erigeron karvinskianus''), airplant (''Kalanchoe pinnata''), and lantana (''Lantana camara'').〔 Many plants were destroyed by Hurricane Iniki in 1992.〔
==References==


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「Euphorbia eleanoriae」の詳細全文を読む



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