Fig. 23: The Gatun Lake, Panama, C. americanum giga
variant, often identified as a C. erubescens major. It has a bulbous
trunk some 50 cm. long by 10-15 cm. diameter, with numerous rhizomes several
centimeters in diameter and up to two meters in length. The plant is
strictly tropical, lacks an enlarged bulb, and is not adaptable to gardens
outside of the tropics.