Lobostemon argenteus, or the silver healthbush, blue rocket bugloss or disselblaarluibos, is a species in the forget-me-not family that is endemic to South Africa.

[3] The stalkless leaves are lance shaped and possess long and short hairs.

The staminal scales occur well below the entrance of the corolla tube, and are reduced to ridges.

[4] This species exhibits a disjunct distribution, occurring in three distinct regions, suggesting it may have been more widespread in the past.

[3] Recent resampling, however, has failed to find specimens in the areas around Kamiesberg or outside of Makhanda.