Monadenium heteropodum (Pax) N.E.Br. in Fl. Trop. Afr. [Oliver et al.] 6(1.3): 453. 1911. Euphorbia heteropoda Pax in Bot. Jahrb. Syst. 34(3): 374. 1904.

Shrubs with underground tuberous root; stems several, arising from the rootstock, erect, cylindrical, up to 35 cm long, up to 3 cm thick, bearing rhomboid hexagonal or square tubercles and 2 or 3 minute prickles connected by a horny rim around the leaf scar, absent on older stems. Leaves fleshy, deciduous, petiolate, rhombic-spathulate, up to 3.5 x 1.2 cm, green. Inflorescence arising in the axils of tubercles, consisting of one central and two lateral involucres; bracts greenish white, ca 13 x 10 mm.

Distrib. Tanzania.