There are two sets of flowers, female at the bottom and male above; the topmost flowers are sterile and modified into a kind of thorn.
The pistillate flowers are arranged in a band and ringshape zone, the ovary is oblongiform (about 4 mm), with a few (I found in every ovary 4 or 5) ovules on an apical and a basal placenta, cream to yellow green, there is no clear style but the stylar region is a little purple, with a papillate stigma.
The male and female flowers are separated by a brief naked or pistillode-bearing interstice; the staminate flowers too are arranged in an a band and ringshape zone, the anthers (1 to 2 mm) are dark yellow, their filaments very short, the connective is exceeding the loculi, the anthers are dehiscing via tiny discrete apical pores and the pollen are released in strands.
Flies attracted by the smell slide down the smooth surface of the spathe, and they become trapped for a day, not by hairs or bristles like in many other Araceae, but by the smooth surface that prevents them from climbing upwards. During this time they crawl over the stigmas, dusting them with pollen from earlier traps. In the next days the anthers of the male flowers dehisce, the spathe withers, and the flies are freed to visit another inflorescence and continue their role of pollinators.
The infructescence is comprised of about 60-80 berries (with only a few seeds inside each berry (see drawing)), sometimes partially encased in the dry spathe tube remnants; the berries are upside-down-pear-shaped, 1 to 3 cm long, orange-red when ripe.
The Seeds are compressed globose, 3-4 mm, grey-brown, somewhat laterally compressed and angled,with a rugose testa.
In the Kamares region of central Crete ‘white’ Dracunculus are found, together with the normal plants with purple-black inflorescence. Since the first reports in the early 1970s a number of other forms have been found in the same area with variously marbled purple and white spathes and pale lilac to deep purple spadix appendices. (from Çanakkale in northwestern Turkey two cases of D. vulgaris with a white-haired spathe and spadix appendix are reported; one with prominent, very short hairs, the other with a similar but sparser indumentum). It should be noticed however that Dracunculus vulgaris displays much variation in overall size, degree of leaf division and leaf marking.
They spread by self-seeding and by bulb offsets. The seedheads will eventually fall down and be carried away by water and (with soil) by men, spreading the Dragon Arum more distantly.
It is a poisonous plant that animals do not approach.