Do all bougainvillea plants have thorns?

Bougainvilleas are sometimes grown around homes and yards as a security feature. This is because they have sharp thorns that can easily pierce through fabric and into bare skin.Click to see full answer. Accordingly, are bougainvillea thorns toxic?Pruning roses, blackberries, pyracantha, bougainvillea and other thorny plants is a potentially hazardous gardening activity. The sharp thorns on these plants can cut and poke holes in your skin, and the small wounds provide an entry point for pathogenic organisms.Furthermore, are there different types of bougainvillea? Bougainvillea spectabilis Bougainvillea glabra Correspondingly, why are my bougainvillea not flowering? Dry and Drier Too much water translates to few or no blooms. Bougainvillea flowers heaviest when the plant is water-stressed. Bougainvillea growers often withhold water for extended periods to force the plant into bloom. To stimulate blooming this way, withhold all water until the leaves begin to wilt.How do you identify bougainvillea?Bougainvillea spectabilis can reportedly be identified by its woolly, rounded leaves, large curved thorns and ovoid bracts of reds and purples. Bougainvillea glabra is a smaller-branched and leaved plant with less thorns and less overall size, and perhaps with less color options (usually magentas or purples).