Yellow wild flower ID please.

Barbarea vulgaris is a PERENNIAL growing to 0.4 m (1ft 4in).
It is hardy to zone (UK) 6 and is not frost tender. It is in flower from May to August, and the seeds ripen from Jul to September. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Flies, bees, beetles, self.The plant is self-fertile.
It is noted for attracting wildlife.

 

Right, here's another one which has got me completely stumped.

I spotted this lone plant growing in an area of damp grassland/marsh at work today. A few basic details:

Height - about 5ft
Flowers - about 2/3 ins diameter
Leaves - quite large, from 12-18 ins long and about 6-8 ins wide. Older leaves have a reddish tinge and underside of leaf is slightly 'downy' having very fine hairs.

Never seen it before, don't even know if it's a wild flower or not. Any ideas?

 

Elecampane

 

Looks like you're spot on there Zigs. Thanks for that, been puzzling over that one all day.

 

It was in the back of me head, good job google helped me spell it though