bad debt expense. Expense associated with a firm's inability to collect accounts receivable, classified usually as an administrative or selling expense. Also called uncollectible accounts expense. http://www.businessdictionary.com/definition/bad-debt-expense.html.
Comfrey (also comphrey) is a common name for plants in the genus Symphytum.Comfrey species are important herbs in organic gardening. It is used as a fertilizer and as an herbal medicine.The most commonly used species is Russian comfrey Symphytum Ã uplandicum, which is a cross or hybrid of Symphytum officinale (Common Comfrey) and Symphytum asperum (Rough Comfrey).ature comfrey plants can be harvested up to four or five times a year. They are ready for cutting when about 60 cm (24 in) high, and, depending on seasonal conditions, this is usually in mid-Spring. Comfrey will rapidly regrow, and will be ready for further cutting about 5 weeks later.
History. Long used to heal wounds, the comfrey leaves and roots have been used to cure ailments ranging from stubborn leg ulcers to broken bones, and hence its common name of âbonesetâ or âknitboneâ. During ancient times, comfrey baths were popular before marriage to repair the hymen and thus restoring virginity.omfrey leaves have also caused cancer in experimental animals. Two species, S. asperum (prickly comfrey) and S. uplandicum (Russian comfrey) contain very high levels of echimidine, one of the more potent alkaloids. Adding to the problem is the fact that these varieties are sometimes labeled as âcommon comfreyâ.