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In biology, anindumentum (Latin, literally: "garment") is a covering oftrichomes (fine "hairs") on aplant[1] or ofbristles (rarely scales) of aninsect.
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The indumentum onplants can have a wide variety of functions, including as anchorage in climbing plants (e.g.,Galium aparine), in transpiration control, in water absorption (Tillandsia), the reflection of solar radiation, increasing water-repellency (e.g., in the aquatic fernSalvinia), in protection against insect predation, and in the trapping of insects (Drosera,Nepenthes,Stylosanthes). Plant indumentum types include
The use of an indumentum oninsects can bepollen-related as onbees,sensory likewhiskers, or for other uses includingadhesion andpoison.
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