The purplish mauve flowers of Coleus venteri, previously Plectranthus venteri, grow in whorls spaced up a sturdy, erect inflorescence stalk that is reddish and hairy. The sepals are short and pointed, also hairy.

The corolla tube is pale, short and curves down, paler than its lips. The lower lip of the corolla is hollow and spoon-shaped, allowing the stamens to lie in it and curve up. The dark purple and globular anthers are thus presented for maximal pollinator contact as seen in the photo. The upper lip of the corolla is erect, smaller than the lower one.

Flowering mainly happens late in autumn (http://www.glasshouseworks.com).