#Id: 10683
#XL - R Botany
Dicot stem anomalous secondary growth occurs due to following reasons:
Anomalous position of cambium
e.g.,Serjania sp. and Bauhinia sp.
Abnormal behavior of normal cambium
e.g., Bignonia, Aristolochia, Tinospora, Clematis etc.
Extrastelar cambium formation
e.g., Amaranthus sp.
Interxylary phloem or included phloem
e.g., Entada sp (box bean), Combretum sp (Combretum), Strychnos sp.
