Hairs or indumentum are the unicellular or multicellular outgrowth of epidermal cells, commonly observed on plant surface including leaves, stems, fruits and different parts of flower. Single linear row or several rows of cells constitute multicellular hairs. It holds significant role in plant taxonomy, physiology, ecology, anatomy, systematic and stress response study. The family Solanaceae with large number of genera exhibited diverse types of hair or trichome or indumentums. With an objective to study hair design pattern in Solanaceae, three locally available plants were selected and epidermal hair morphology were investigated. Following proper methodology in cleaning, peeling and observation, both vegetative and reproductive parts were prepared on glass slides. Plant parts like leaves, stems and floral parts were observed. Fairly widespread diversity were observed between three different plants and between parts of same plant. The hair styles ranged from glandular to non-glandular, unicellur, bicellular to multicellular, branched to un-branched and other variations stellate, stinging, strigose, hirsute, hispid types etc. which were found to be stable in different replicates. The similarities and dissimilarities among taxa regarding hair morphology can be used as a reference point for future systematic studies in the family Solanaceae.

Keywords:Hair Design; Morphological Investigation; Vegetative and Reproductive Parts; Solanaceae