Herbology for Beginners

Identify plant tissue types by contrasting permanent tissues with dividing tissues, and classify them as simple, complex, and secretive within growthpoint systems.

Explains that stomata are openings on the plant epidermis that permit gas exchange of carbon dioxide and oxygen, illustrated with a tomato and multiple stomatal types and arrangements.

Explore three covering trichome types and two glandular trichome types, with explanations of unicellular and multicellular stalks, bent angles, and collapse. See examples from cannabis and digitalis to illustrate shapes.

Explore the plant's vascular tissue system, the conducting network that absorbs water and minerals, transports them to leaves, and moves glucose and starch to storage organs.

Explore senna leaf as a stimulant laxative with one-week use limits, risk of dehydration and electrolyte shifts, interactions increasing toxicity with digitalis leaf and lily of the valley.

Learn about valerian root: its capsules and tablets, sedating effects for sleep, and cautions for drivers, with possible drowsiness and drug interactions.

Explore jaborandi leaf, noting tablets and eyedrops, and Morandi extract modeling sympathetic-like activity to constrict pupils. Note contraindications, warnings, adverse effects, and atropine and caffeine interactions.