Encelia

Encelia is a genus of the plant family Asteraceae. It consists of shrubs (and one geophyte) of arid environments in southwestern North America and western South America.

All have n = 18 chromosomes. All the North American species are obligate outcrossers. In cultivation, the species readily form fertile F₁ hybrids, F₂s, and backcrosses, but in natural areas of sympatry, F2s and backcrosses are absent or rare.

单词	Encelia
释义	Encelia 英语百科 Encelia Encelia is a genus of the plant family Asteraceae. It consists of shrubs (and one geophyte) of arid environments in southwestern North America and western South America. All have n = 18 chromosomes. All the North American species are obligate outcrossers. In cultivation, the species readily form fertile F₁ hybrids, F₂s, and backcrosses, but in natural areas of sympatry, F2s and backcrosses are absent or rare.
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