*Sonchus biennis Moench 1794
*Agathyrsus floridanus D.Don
*Agathyrsus leucophaeus Beck
*Cicerbita leucophaea Wallr.
*Cicerbita spicata (Lam.) Beauverd
*Galathenium multiflorum (DC.) Nutt.
*Lactuca leucophaea A.Gray
*Lactuca spicata (Lam.) Kuntze
*Lactuca spicata Hitchc.
*Lactuca terrae-novae Fernald
*Mulgedium leucophaeum DC.
*Mulgedium spicatum (Lam.) Small
*Sonchus leucophaeus Willd.
*Sonchus spicatus Lam.
Common Names: Tall blue lettuce and Blue wood lettuce.
Habitat:Lactuca biennis is native to Eastern N. America. It is widespread across much of the United States and Canada from Alaska and Yukon south as far as California, New Mexico, and Georgia. It grows on damp thickets.
Lactuca biennis is a biennial herb in the dandelion tribe within the daisy family growing from a taproot to heights anywhere from one half to four meters (20 inches to over 13 feet). There are deeply lobed, toothed leaves all along the stem. The top of the stem bears a multibranched inflorescence with many flower heads. Each head is just over a centimeter (0.4 inches) wide and has many whitish to light blue ray florets but no disc florets. The fruit is a mottled achene about half a centimeter (0.2 inches) long with a brownish pappus.
The flowers are hermaphrodite (have both male and female organs)Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
The root is analgesic, antiemetic and haemostatic. A decoction has been used in the treatment of body pain, but not pain in the limbs. The decoction has also been used in the treatment of haemorrhages, heart troubles, diarrhoea and vomiting.
Disclaimer : The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplement, it is always advisable to consult with your own health care provider.