1. the cuplike or ringlike or tubular structure of a flower which bears the sepals and stamens and calyx (as in Rosaceae); [syn: hypanthium, floral cup, calyx tube]
WordNet (r) 3.0 (2006):
calyx tube
n 1: the cuplike or ringlike or tubular structure of a flower
which bears the sepals and stamens and calyx (as in
Rosaceae) [syn: hypanthium, floral cup, calyx tube]