Term: grey birch: medium-sized birch of eastern North America having white or pale grey bark and valueless wood; occurs often as a second-growth forest tree
Broader: vascular plant: green plant having a vascular system: ferns, gymnosperms, angiosperms | Unrelated: expose: the exposure of an impostor or a fraud
Broader: vascular plant: green plant having a vascular system: ferns, gymnosperms, angiosperms | Unrelated: attenuation: the property of something that has been weakened or reduced in thickness or density
Broader: vascular plant: green plant having a vascular system: ferns, gymnosperms, angiosperms | Unrelated: blue pimpernel: an American mint that yields a resinous exudate used especially formerly as an antispasmodic
Broader: vascular plant: green plant having a vascular system: ferns, gymnosperms, angiosperms | Unrelated: motility: ability to move spontaneously and independently
Broader: vascular plant: green plant having a vascular system: ferns, gymnosperms, angiosperms | Unrelated: tripling: increase by a factor of three
Broader: vascular plant: green plant having a vascular system: ferns, gymnosperms, angiosperms | Unrelated: bedrock: solid unweathered rock lying beneath surface deposits of soil
Broader: vascular plant: green plant having a vascular system: ferns, gymnosperms, angiosperms | Unrelated: love affair: a relationship between two lovers
Broader: vascular plant: green plant having a vascular system: ferns, gymnosperms, angiosperms | Unrelated: goal-kick: (association football) a kick by the defending side after the attacking side sends the ball over the goal-line
Broader: vascular plant: green plant having a vascular system: ferns, gymnosperms, angiosperms | Unrelated: exceedance: (geology) the probability that an earthquake will generate a level of ground motion that exceeds a specified reference level during a given exposure time
Broader: vascular plant: green plant having a vascular system: ferns, gymnosperms, angiosperms | Unrelated: amphictyony: an association of neighboring states or tribes in ancient Greece; established originally to defend a common religious center