TY  - JOUR 
T1  - Reproductive phenological pattern of Calotropis procera (Apocynaceae), an invasive species in Brazil: annual in native areas; continuous in invaded areas of caatinga
JO  - Acta Botanica Brasilica
A1  - Sobrinho, Mellissa Sousa
A1  - Tabatinga, George Machado
A1  - Machado, Isabel Cristina
A1  - Lopes, Ariadna Valentina
SN  - 0102-3306
UL  - 10.1590/S0102-33062013000200018
VL  - 27 
Y1  - 2013
PB  - Brasil 
ER  -