Updated 05-May-2020.
Mondo shtuff from around the internet, all about CATALPA!
My botty best at summarizing from Wikipedia: catalpa is a genus of flowering plants in the family Bignoniaceae . they are fast growers and a 10-year-old sapling may stand about 6 metres (20 ft) tall in late summer or autumn the fruit appear; they are siliques about 20–50 centimetres (8–20 in) long, full of small flat seeds, each with two thin wings to aid in wind dispersal . northern and southern catalpas are very similar in appearance, but the northern species has slightly larger leaves, flowers, and bean pods . flowering starts after 275 growing degree days. Catalpa ovata from china Giovanni Antonio Scopoli established the genus Catalpa in 1777 . when caterpillars are numerous, infested trees may be completely defoliated . Severe defoliation over several consecutive years can some dedicated anglers plant catalpa mini-orchards for their own private source of “catawba-worms” in the southern states . the caterpillars are an excellent live bait for fishing