Term: wall rue: small delicate spleenwort found on a steep slope (as a wall or cliff) of Eurasia and North America
Broader: spleenwort: any of various chiefly rock-inhabiting ferns of the genus Asplenium | Unrelated: monobasic acid: an acid containing only one replaceable hydrogen atom per molecule
Broader: spleenwort: any of various chiefly rock-inhabiting ferns of the genus Asplenium | Unrelated: saxhorn: any of a family of brass wind instruments that resemble a bugle with valves
Broader: spleenwort: any of various chiefly rock-inhabiting ferns of the genus Asplenium | Unrelated: pilot bit: a small bit that drills a first hole to guide a larger drill
Broader: spleenwort: any of various chiefly rock-inhabiting ferns of the genus Asplenium | Unrelated: trestle: a supporting tower used to support a bridge
Broader: spleenwort: any of various chiefly rock-inhabiting ferns of the genus Asplenium | Unrelated: perturbation: activity that is a malfunction, intrusion, or interruption
Broader: spleenwort: any of various chiefly rock-inhabiting ferns of the genus Asplenium | Unrelated: swamp willow: North American shrubby willow having dark bark and linear leaves growing close to streams and lakes
Broader: spleenwort: any of various chiefly rock-inhabiting ferns of the genus Asplenium | Unrelated: cough: a sudden noisy expulsion of air from the lungs that clears the air passages; a common symptom of upper respiratory infection or bronchitis or pneumonia or tuberculosis
Broader: spleenwort: any of various chiefly rock-inhabiting ferns of the genus Asplenium | Unrelated: acceleration: an increase in rate of change
Broader: spleenwort: any of various chiefly rock-inhabiting ferns of the genus Asplenium | Unrelated: vittariaceae: one of a number of families into which Polypodiaceae has been subdivided in some classification systems: genus Vittaria
Broader: spleenwort: any of various chiefly rock-inhabiting ferns of the genus Asplenium | Unrelated: terrorist attack: a surprise attack involving the deliberate use of violence against civilians in the hope of attaining political or religious aims