Lettuce (Lactuca sativa) is a popular leafy vegetable in the daisy family. It ranges in color from yellow to dark green but may also have reddish hues. While it’s grown worldwide, China produces the ...

Wherever trees grow, sooner or later their leaves get wet. For trees in wet environments, this can be a problem if films of water cover their stomata. These tiny pores allow carbon dioxide to enter ...

Best known for their unique forms and enchanting colors, orchids are beloved by novice and seasoned growers alike. Though select species have earned their reputation as exceedingly difficult to grow, ...

Leaves can be enjoyed for their shade, autumn colors, or taste, and the arrangement of leaves on a plant is a practical way to identify a species. However, the details of how plants control their leaf ...