foxglove flowers

acidic agent agriculture agroforestry angiosperm antiarrhythmic asterid block botanical botany bradycardia clearings conditions congestive day deep digitalideae digoxigenin earth environmental eudicot failure figwort flower forest green growth heart heath lamiales leaf leaves life margins marks moorland natural nature open ornamental period plant plantaginaceae poisening shade souls spotting stem steroid tachycardia woodland woods yellow