Chú thích Cuống_lá

  1. 1 2 3 4 Beentje, H. The Kew plant glossary. London: Kew Publishing. ISBN 9781842464229. 
  2. 1 2 Mauseth, James D (2003). Botany: An Introduction to Plant Biology. Jones & Bartlett Learning. ISBN 0-7637-2134-4. 
  3. 1 2 Stace, C.A. (2010). New flora of the British isles . Cambridge, U.K.: Cambridge University Press. ISBN 9780521707725. 
  4. ↑ Heywood, V.H.; Brummitt, R.K.; Culham, A.; Seberg, O. (2007). Flowering plant families of the world. New York: Firefly Books. ISBN 9781554072064. 
  5. ↑ Foust, Clifford M. (1992). Rhubarb: The Wondrous Drug. Princeton: Princeton University Press. ISBN 0-691-08747-4. 
  6. ↑ High Altitude Rhubarb