Trichomes are highly specialized uni- or multicellular outgrowths of epidermal cells of plant organs that. in the case of leaves. contribute to plant resistance against abiotic and biotic stress. The model plant Arabidopsis thaliana features single-celled non-glandular rosette leaf trichomes that are dispensable under laboratory conditions. https://www.ealisboa.com/great-deal-Pentair-Union-Collar-2-U11-200PS-super-offer/