He was often portrayed with unshaven jowls, slumped shoulders, and a furrowed, sweaty brow. Right now, my eyebrows are furrowed more than my pulse is pounding. The bark is gray with a reddish tinge, deeply furrowed and scaly. The bark is irregularly furrowed and scaly. Dried nutmegs are grayish brown ovals with furrowed surfaces. Adult males have a black head and hindneck, buff cheeks and heavily furrowed neck. The stipe is slender, glabrous, and longitudinally furrowed or ridged. The tree's mature bark is dark, deeply furrowed and scaly. The bark is dark, thick, furrowed, and roughly ridged. The bark is dark gray and deeply furrowed. The bark is dark grey and deeply furrowed. Some species have whitish bark that is characteristically furrowed. The trunk has deeply furrowed grey to brown bark. As the plants age, the bark becomes bluish-purple, ridged and furrowed. The stems are tall, erect and furrowed, reddish to sometimes purple.