'Pineweed' definitions:

Definition of 'pineweed'

From: WordNet
noun
Annual wiry-stemmed North American weed with minute scalelike leaves and small yellow flowers [syn: orange grass, nitweed, pineweed, pine-weed, Hypericum gentianoides]

Definition of 'Pineweed'

From: GCIDE
  • Pineweed \Pine"weed`\, n. (Bot.) A low, bushy, nearly leafless herb (Hypericum Sarothra), common in sandy soil in the Eastern United States. [1913 Webster]