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・ Castillonnais
・ Castillonnais (Gironde)
・ Castillonnès
・ Castillonroy
・ Castillos
・ Castilly
・ Castilléjar
・ Castilleja angustifolia
・ Castilleja applegatei
・ Castilleja aquariensis
・ Castilleja arachnoidea
・ Castilleja attenuata
・ Castilleja brevistyla
・ Castilleja campestris
・ Castilleja caudata
Castilleja christii
・ Castilleja cinerea
・ Castilleja coccinea
・ Castilleja de Guzmán
・ Castilleja de la Cuesta
・ Castilleja del Campo
・ Castilleja densiflora
・ Castilleja ecuadorensis
・ Castilleja elegans
・ Castilleja exserta
・ Castilleja foliolosa
・ Castilleja grisea
・ Castilleja indivisa
・ Castilleja integra
・ Castilleja kaibabensis


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Castilleja christii : ウィキペディア英語版
Castilleja christii

''Castilleja christii'' is a rare species of flowering plant in the broomrape family known by the common name Christ's Indian paintbrush. It is endemic to Idaho in the United States, where there is a single population on Mount Harrison in the Albion Mountains in the Minidoka Ranger District of Sawtooth National Forest.〔(''Castilleja christii''. ) The Nature Conservancy. Retrieved 10-23-2011.〕 It is one of Idaho's rarest plants.〔(''Castilleja christii''. ) Center for Plant Conservation. Retrieved 10-23-2011.〕
This plant was named for John Henry Christ (1896-1973), who first collected it.〔 It is a perennial herb with a cluster of several erect stems tall. The lance-shaped leaves are a few centimeters long and may be divided into lobes. The inflorescence is covered in glandular hairs. It contains many lance-shaped yellow or orange bracts and flower corollas long. Blooming occurs in July and August. The plant reproduces by seed.〔
This plant grows near the mountain summit at an elevation of ,〔 where deep snow accumulates and sometimes lasts into the summer or year-round. It occurs in grassy meadow habitat alongside ''Festuca idahoensis'' and ''Elymus trachycaulus'', a snowbed habitat with ''Solidago multiradiata'', ''Erigeron peregrinus'', ''Lupinus argenteus'', and ''Cymopterus davisii'', and openings in sagebrush. The climate is subalpine. The soils are shallow and there are no trees.〔
The only population of this plant is managed by the Sawtooth National Forest. The population fluctuates in numbers, sometimes reaching over one million individuals, but is declining overall. The main threat to the species is habitat loss, which has occurred with the construction of roads in the area. Some vehicles also go off-road, despite barriers to prevent this activity. Some cattle grazing occurs in the habitat, but fencing protects some parts of it. Smooth brome (''Bromus inermis'') has been introduced into the habitat, where it is a noxious weed.〔
==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「Castilleja christii」の詳細全文を読む



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