NPLEX II Botanical Medicine Practice Test

Ganoderma lucidum, known as reishi or lingzhi, is singled out for immunomodulating and adaptogenic effects because its active constituents work to balance the immune system rather than simplyuppress or overstimulate it. Polysaccharides, especially beta-glucans, interact with immune cells such as natural killer cells, macrophages, dendritic cells, and T cells, helping to modulate cytokine production and immune response in a nuanced, balanced way. That immunomodulatory action is paired with adaptogenic properties, where compounds like certain triterpenes contribute to anti-inflammatory effects and may help the body cope with stress, supporting energy and resilience over time. This combination—tuning immune activity while supporting the body's adaptation to stress—fits the described effects exactly. The other options are not renowned for these actions. Eucalyptus globulus is primarily noted for its respiratory benefits from essential oils; Foeniculum vulgare (fennel) is known for digestive and carminative properties; Eupatorium perfoliatum (boneset) is traditionally used for fever and flu-like symptoms but not for immunomodulation or adaptogenic support in the same sense.