Coarse chameleon

{{Short description|Species of lizard}}

{{Speciesbox

| name = Coarse chameleon

| image = Rough chameleon (Trioceros rudis).jpg

| image_caption = In farmland near Mount Karisimbi, Rwanda

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite iucn |author=Tolley, K. |author2=Plumptre, A. |date=2014 |title=Trioceros rudis |volume=2014 |page=e.T172534A1344539 |doi=10.2305/IUCN.UK.2014-3.RLTS.T172534A1344539.en |access-date=20 November 2021}}

| genus = Trioceros

| species = rudis

| authority = (Boulenger, 1906)

| range_map = Range_Trioceros_rudis.jpg

}}

The coarse chameleon (Trioceros rudis), also known as the rudis chameleon, Ruwenzori side-striped chameleon or the Rwenzori bearded chameleon, is a chameleon from western Uganda, Rwanda, Burundi, and eastern DR Congo.{{cite web|url=http://reptile-database.reptarium.cz/search.php?genus=Chamaeleo&species=rudis|title=Advanced search - The Reptile Database|author=|date=|website=Reptile-Database.Reptarium.cz|access-date=9 August 2017}} Contrary to common belief, this species does not inhabit Mount Meru, Tanzania. Tanzania chameleons called T. rudis are in fact T. sternfeldi.

This chameleon is often found in open habitats, inhabiting low bushes and shrubs (often described as 'patchy open country") in the transitional zones between grasslands, reedbeds and montane heath.

T. rudis is small ({{convert|10|to|15|cm|in|abbr=on}}) and lacks horns or occipital lobes. It has a long tail and a small crest.