A deciduous tree; source of natural aspirin.
A plant of the violet family.
An annual cereal grass, high in vitamins and minerals, that is cultivated for its nutritional value.
The collection of medicinal material from natural plant populations with or without considering their sustainable use.
When the margin is alternately convex and concave.
Anglo-Saxon for herb lore.
Layer or mass of dead tissue separated from surrounding living tissue.
To separate the chaff from grain or seed by wind or a forced current of air; eliminating the dry covering…
Abnormal growths on the skin due to viral infection caused by human papillomavirus. (Surface of cap or stem base) Small…
An atrial arrhythmia that occurs when the natural cardiac pacemaker site shifts between the sino-atrial node, the atria and/or the…