[USDA zone 9a (?) – 12]
 
This species is native to eastern Thailand and possibly adjoining western Laos. This species seems to form a close regionally located related group with Am. polyanthus and Am. terrestris, which I hope to offer soon as well. This species as with most Amorphophallus and Arisaema species are seasonally dormant. Plants of this species grows 2” – 4” tall. Each tuber produces a single stem that terminates with a single “leaf” or inflorescence. Each leaf consists of a small umbrella of 5 - 8 elongated leaflets that is 4” – 6” across. The leaflets are variously covered with rounded white to yellow spots. The stem is green. The plant alone is very ornamental. The inflorescence is produced from the naked tuber before the leaves are produced. The inflorescence is produced at or just slightly below the soil surface. The inflorescence is single “flowered. The “flower” is actually a modified inflorescence that consists of the spathe (outer ornamental part) and the spadix (internal sexual bits). The spadix is 2¼” – 3” tall. The spathe is tubular and surrounds the base of the spadix. The spathe is ½” – ¾” long. The exterior of the spathe is tan with tiny purple-red spots at the apex. Flowers last only a few days. The interior of the spathe has a cream-tan base and a solid red-purple apex. The flowers attract flies for pollination. If pollinated the tiny 2-7 fruited infructescence produces green berries that turn black when ripe.