vine cactus vs candlewood

vine cactus and candlewood both are nouns.

Word	Noun	Adjective	Verb	Adverb
vine cactus	Yes	No	No	No
candlewood	Yes	No	No	No

As nouns, candlewood is a hypernym of vine cactus; that is, candlewood is a word with a broader meaning than vine cactus:

vine cactus: desert shrub of southwestern United States and Mexico having slender naked spiny branches that after the rainy season put forth foliage and clusters of red flowers
candlewood: any of several resinous trees or shrubs often burned for light

vine cactus (noun)	candlewood (noun)
desert shrub of southwestern United States and Mexico having slender naked spiny branches that after the rainy season put forth foliage and clusters of red flowers	any of several resinous trees or shrubs often burned for light