William Jackson Hooker,
Curtis's Botanical Magazine, Volume 73…
“ A shrub, everywhere covered with a glaucous-white, pulverulent substance; young branches four-sided. Leaves numerous, opposite, large, three to four inches long, elliptical-ovate or cordate, sessile and half embracing the stem, coriaceous, acuminulate, margined, penninerved, the nerves very patent, rather crowded, parallel. ”
