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Ruellia longepetiolata_weed in horticulture.jpg Ruellia lactea_upright form.jpg Ruellia saeri.jpg Ruellia foetida.jpg Ruellia mcvaughii.jpg Trichanthera corymbosa_living fence.jpg Ruellia petiolaris_photo by V. Steinman.jpg

Acanth Fact of the Day

A major clade within Acanthaceae is the cystolith clade. Cystoliths are anatomical structures found in leaves and are thought to be composed of calcium carbonate or calcium oxalate. Their function is unknown.
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Introduction

Welcome to the home of all things Acanthaceae. The Acanthaceae are among the dozen or so largest families of flowering plants. With > 4,000 species, plants in Acanthaceae occur predominantly in worldwide tropical areas but also extend into temperate biomes. Most species are herbs or shrubs, but some are vines or trees.

Species of Acanthaceae play an important ecological role because many different classes of pollinators, from bees, butterflies, hawkmoths, hummingbirds, sunbirds and bats depend upon their nectar and pollen for survival. Navigate through the website to explore the diverse lineages that comprise the Acanthaceae. View pictures, explore ongoing research in the family and learn about the ecology, evolution, and ethnobotanical uses of members of Acanthaceae.


Hotspots of diversity for Acanthaceae