Dictionary:

puccoon

  (pə-kūn')

1. 1. Any of several North American plants of the genus Lithospermum, having orange or yellow flowers and roots that yield a red dye.
   2. Any of several plants, such as the bloodroot, whose roots yield a reddish dye. Also called gromwell.
2. The dye from any of these plants.

[Of Virginia Algonquian origin.]

The noun has 2 meanings:

Meaning #1: perennial plant of eastern North America having hairy foliage yielding a red or yellow pigment
  Synonym: Lithospermum caroliniense

Meaning #2: perennial woodland native of North America having a red root and red sap and bearing a solitary lobed leave and white flower in early spring and having acrid emetic properties; rootstock used as a stimulant and expectorant
  Synonyms: bloodroot, redroot, tetterwort, Sanguinaria canadensis