boojum tree vs Fouquieria columnaris

boojum tree and Fouquieria columnaris both are nouns.

Word	Noun	Adjective	Verb	Adverb
boojum tree	Yes	No	No	No
Fouquieria columnaris	Yes	No	No	No

As nouns, boojum tree and Fouquieria columnaris are synonyms defined as:

boojum tree and Fouquieria columnaris: candlewood of Mexico and southwestern California having tall columnar stems and bearing honey-scented creamy yellow flowers

Other synonyms of boojum tree include cirio, Idria columnaris.

boojum tree (noun)	Fouquieria columnaris (noun)
candlewood of Mexico and southwestern California having tall columnar stems and bearing honey-scented creamy yellow flowers	candlewood of Mexico and southwestern California having tall columnar stems and bearing honey-scented creamy yellow flowers