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这个团扇和Opuntia . polyacantha var. erinacea(修罗团扇变种)很相似,最后一张图就是Opuntia . polyacantha var. erinacea,是不是觉得差别很小,都是头发刺,下面是Opuntia trichophora发现者的描述,原文如下:
Opuntia trichophora is a bit similar to O. polyacantha erinacea, and the areoles are smaller and closer together. Most spines are very slender, flexible, and typically hair-like; though some centrals may be fairly stiff. The fruit has many thin, flexible almost hair-like spines. O. trichophora is obviously related to O. polyacantha We follow Britton and Rose (1919) and their description of this plant as a distinct species. See the original description. O. trichophora is diploid.
Opuntia trichophora is a diploid species that is closely related to, but not conspecific with, O. polyacantha. It is likely that O. trichophora is an ancestor of O. polyacantha. The range of this diploid species doesn’t go very far north in Utah and has not been found in northern Utah into Wyoming along Flaming Gorge as noted above. In Utah it has only been documented by chromosome counts on and near Cedar Mesa near Arches National Monument and at that locality it hybridizes with O. macrorhiza.
O. trichophora grows mostly on hot rocky slopes or cliff faces in mountainous or otherwise dissected terrain or on gypsum soils. The species is found throughout much of Colorado Plateau and north into WY along Flaming Gorge; east of the high central mountains and plateaus of UT; on the western side of CO; in northern AZ east from Coconino/Kaibab; in most of NM west of the Great Plains; and in trans-Pecos TX.
大致意思是说:Opuntia trichophora 和 O. polyacantha erinacea有一点相似,并且刺座更小更紧密。最具代表性就是刺,细长,柔软,想头发一样。部分中刺相当坚硬,果实很薄,裹在毛发状刺里面。 O. trichophora和 Opuntia . polyacantha是很明显的两个品种,我们采用布里顿和罗斯(1919年)著作里的描述,把它作为一个不同的物种。原始的描述中,O.trichophora属于二倍体。 Opuntia trichophora 是一个二倍体物种,与O.polyacantha 是密切相关的,但不是同种.。很有可能的是,O.trichophora是o.polyacantha的祖先。这两个二倍体物种的范围在犹他州并没有到很远的地方,在北犹他州也没有发现,在北犹他州进入怀俄明,沿燃烧的峡谷如上所述。在犹他州,只有通过染色体计数和附近的雪松梅萨拱门国家纪念碑附近的记录,记录显示在那个地方它与O。macrorhiza (荐团扇)杂交. O. trichophora更多生长在炙热的岩石或悬崖的斜坡,另外还有在悬崖峭壁,比较陡的地形的石灰岩上面。 这个物种发现最多的地方是科罗拉多高原和北沿峡谷到wy火焰峡谷;中央山脉的东部和UT 高原,CO的西部,在北/东从亚利桑那州;在大多数西部的大平原上,跨在德克萨斯州的佩科斯河。
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