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Rubiaceae
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Coffee cherries Cluster of madder plants, Rubia tinctorum, showing whorled green leaves with pointed tips. No flowers or fruits are visible. Cinchona Close-up of bright green, veined kratom leaves (Mitragyna speciosa) growing on a plant outdoors. Sweet woodruff
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Venus's-flytrap. Venus's-flytrap (Dionaea muscipula) one of the best known of the meat-eating plants. Carnivorous plant, Venus flytrap, Venus fly trap
Plants: From Cute to Carnivorous
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Rubiaceae: Media

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Images

Coffee cherries
Ripening coffee cherries on a coffee tree (Coffea), Hawaii.
© Hemera/Thinkstock
Madder
Common madder (Rubia tinctorum), formerly cultivated for a red dye known...
© Manfred Ruckszio/Shuttertock.com
Cinchona
Red cinchona (Cinchona pubescens) flowers. The bark is used for its high...
United States Geological Survey (USGS)
Kratom
The leaves of kratom (Mitragyna speciosa) contain a psychoactive alkaloid.
© Surachet Khamsuk/Dreamstime.com
Sweet woodruff
The whorled leaves of sweet woodruff (Galium odoratum).
AdstockRF
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