The highly sought after and rarer Tibetan form of arisaema flavum. The yellow flowers are much larger than the type species looking like big yellow pelican beaks. They are highly fragrant and very decorative.
 
This is one of the only arisaema species that actually prefers full sun in order to grow well. Very easy to grow in any well drained soil and multiplies well in time. It will also adapt to shadier locations as long as the shade is not too dense. Flowers in May/June, 60 to 70cm tall.