Does Balsam plant have a fleshy part?

Answer 1

Impatiens glandulifera Royle Introduction

Himalayan balsam is now a very common and locally abundant species of river banks and lake sides. It has spread widely in Northern Ireland over the past seven decades, and has become a local nuisance which has a damaging effect on native vegetation.
Description

Himalayan balsam is an attractive plant found growing in dense stands on the banks of rivers, canals or on lake or pond margins. Individual plants can reach 2m in height, have translucent, fleshy stems, large oval pointed leaves with obvious teeth around their edges, each tooth carrying a small globular 'gland', and produce large numbers of flowers of variable colour, but usually some shade of purple which are followed by ' seed pods' about 25mm long. When mature and dry, the slightest touch causes these fruits to split open explosively, flinging the seeds a considerable distance from the parent plant. Each plant produces about 2,500 seeds which fall to the ground at a density of between 5000 - 6000 seeds per square metre. It is an annual species. Another English name coined for this plant is policeman's helmet - a good description of the shape of the flower which resembles that of an English police helmet. It is also called Indian balsam.
Country of origin

The plant is native to the Himalayas

http://www.habitas.org.uk/invasive/species.asp?item=3189