by Jenny RobertsThe essential oil distilled from the small yellow flowers of the Helichrysum plant is quickly becoming one of the most popular essential oils used in aroma-medicine (perhaps the more appropriate term than ‘aromatherapy’ for the growing medicinal use of volatile plant extracts in the United States). Other monikers for this important oil include Everlasting and Immortelle — they all refer specifically to Helichrysum italicum — one of more than 500 known Helichrysum species. What’s