Euphorbia obesa forma cristata

	Euphorbia obesa forma cristata	CACTUS ART NURSERY Cultivation and Mail Sale of Cacti and Succulents.

*Euphorbia obesa forma cristata.*
Photo Photo & © copyright by Irwin Lightstone http://www.radiantimagesphotography.net	The cause of cresting: The cause of cresting is not fully explained, biologists disagree as to why some plant grow in this unusual form. Some speculate that it is a genetic mutation. Others say it is the result of a lightning strike or freeze damage, but whatever the stimulus, the growth point of the stem has switched from a geometric point, to a line, which folds and undulates as the crest expands. Crested Euphorbia are quite rare, cresting occurs naturally and can be encountered in many other species.

	Propagation: Grafting since cutting root hardly or seeds (the seed from crested plants produce crested seedling with a relatively high frequency) Photo of conspecific taxa, varieties, forms and cultivars of Euphorbia obesa. E. obesa E. obesa subsp. symmetrica E. obesa f. caespitosa E. obesa f. cristata *E. obesa f. polytomica* E. obesa f. prolifera

Family: Euphorbiaceae

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