UBS Dictionary of the Greek New Testament

Sense 1: straw, thatch

Semantic entry: 3.58

Semantic domains: Plants

Subdomains: Non-Fruit Parts of Plants

Definition: the dry stalks of grain or reeds κάλαμος

Notes: It is difficult in RV CO1 3:12 · LV CO1 3:12 · Read together CO1 3:12 to know precisely the distinction between χόρτον ‘grass’ and καλάμην ‘straw.’ It would seem clear that καλάμην would be less valuable than χόρτον, and this might be a reference to the use of straw as a very poor thatching material. On the other hand, it could be understood as a reference to the use of straw in place of grass in the making of sun- dried bricks.

Further resources: flora:5.1.4