Botany

Botany - grow your knowledge with us.

Upgrade to Britannica Online

Take a tour, New improved britannica online

Imagine Britannica's 32-volume encyclopedia online right there for you, plus full access to articles. Amazing content, written by world experts, that you can cite for projects and assignments.

Click here for Britannica shop

coleus

Any member of the Old World tropical plant genus Coleus, containing about 150 species, in the mint family, best known for its colourful foliage. Varieties of C. blumei, from Java, are well-known houseplants and garden plants. They have square stems and small, blue, two-lipped flowers in spikes. Bush coleus (C. thrysoideus), from Central Africa, produces sprays of bright blue flowers. Others are variously known as flame nettle, painted leaves, painted nettle, Spanish thyme, Indian borage, country borage, and flowering bush.

Find more information on coleus. Upgrade to Britannica Online for more on coleus.

  • Get more
  • M?ss?ng more?

    Subscribers see 10 times more content. Just US $69.95 per year

  • Britannica, just as colourful as Hong Kong
  • Times may change, but insightful knowledge is still in demand. That's why Britannica brings a world of knowledge online, to Hong Kong. Have a look for yourself.