Wahlenbergia insulae-howei is a flowering plant in the bellflower family. The specific epithet alludes to Lord Howe Island, where it is found.
It is a perennial herb, tufted and sparsely branched, growing to 5âÂÂ15 cm in height. The linear or narrowly elliptic to elliptic-oblanceolate leaves are usually 5âÂÂ20 mm long, 1âÂÂ6 mm wide. It has blue, bell shaped flowers 6.5âÂÂ10 mm long. The growth habit varies according to the substrate, being more stunted and tufty in exposed clefts in rocks.
The plant is endemic to AustraliaâÂÂs subtropical Lord Howe Island in the Tasman Sea. It is found at rocky sites in bushy grassland.