About those yardlong beans I ordered...

"Vigna unguiculata subsp. sesquipedalis is of a different genus than the common bean. V. unguiculata is a vigorous, climbing annual vine. A variety of the cowpea, it is grown primarily for its strikingly long (35-75 cm) immature pods and has uses very similar to that of a green bean...

"The plant is subtropical/tropical and most widely grown in the warmer parts of Southeastern Asia, Thailand, and Southern China. A traditional food plant in Africa, this little-known vegetable has potential to improve nutrition, boost food security, foster rural development and support sustainable landcare."