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

gumbo

In soil science, any of various fine-grained, rich, black, alluvial soils, especially of the central U.S., that when wet become impenetrable and soapy or waxy and very sticky. When dried, gumbo “bakes” and becomes extremely hard.

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

  • Britannica, just as colourful as Singapore
  • Singapore is a legendary city. Britannica has a legendary reputation for knowledge. With just a few clicks you can access all the quality information you can trust, online.