proteoid
Adjective
Meaning
Relating to, or characteristic of protea
(botany, of a root) Having a cluster of closely spaced short lateral rootlets
Source: en.wiktionary.orgExamples
If fertilised, only slow-release, low- phosphorus fertilizer should be used, as the proteoid roots may be damaged by high nutrient levels in the soil.
Some evidence suggests that phosphorous acid may inhibit proteoid root formation. citation Because dieback thrives in moist soil conditions, it can be a severe problem for Banksias that are watered, such as in the cut flower industry and urban gardens.