These are 4 lobelias blooming in February : Lobelia pinifolia, L. coronopifolia, L. chamaepitys and L setacea ….and they are sometimes a bit confusing. Hope this will help you.
Lobelia pinifolia
Dec to April. Erect shrublet to 50 cm, resprouting after fire. Leaves narrow, crowded, pointed, smooth. Flowers 3-10, blue, terminal or in leaf axils. Found on rocky slopes.

Lobelia pinifolia
Looking more closely at the other 3 :
Lobelia coronopifolia, L. chamaepitys, and L. setacea
Lobelia coronopifolia
Oct-April: Tufted perennial, branching from base. Leaves narrow, toothed, bright green, smooth. Flower stems: strong green, (fading to pale brown). Flowers larger than L chamaepitys. Blue. Lower sandy flats.

Notice the leaf detail in the L.coronopifolia
Lobelia chamaepitys
Sept- April. Tufted perennial branching from the base. Leaves narrow, toothed, dull green, hairy. Flower stems: very thin, brown, (green when young) Flowers 1 or 2 violet blue. Rocky slopes



Lobelia setacea
Nov – April. Sprawling perennial. Leaves scattered, very narrow on thin stems. Flowers blue, hairy ovary rounded below. Found on rocky slopes, and lower flats




We hope that makes it clearer!
If you get a chance take your spy glass and look inside the flowers. These 4 lobelias all have 5 anthers with a brush-like tuft with white hairs. Very pretty!
Lobelia coronopifolia, L. chamaepitys, L.setacea