Lobelia, named after Mathias de Lobel (1538-1616), physician to William of Orange and then botanist to James I of England. Irrigua, from Latin meaning watered, alluding to the species' habitat of wet areas.
Distribution and status
Found mainly in the lower South-east in South Australia with other locations on Kangaroo Island and Hindmarsh Island, growing on heavy, seasonally damp soils along watercourses, in saltmarsh, slightly brackish to sub-saline wetlands and damp grassland. Also found in Victoria and Tasmania. Native. Uncommon in South Australia. Common in the other States.
Herbarium regions: Southern Lofty, Kangaroo Island, South Eastern
NRM regions: Adelaide and Mount Lofty Ranges, Kangaroo Island, South East
AVH map: SA distribution map (external link)
Procumbent or decumbent, nearly glabrous perennial herb with zigzagged stems and rooting at nodes. Leaves linear to obovate or ovate, to 40 mm long and 8 mm wide; entire or toothed; rather thick, glabrous or occasionally with minute hairs on margins, base tapered gradually. Flowers irregularly spaced along stem; male, female and bisexual flowers superficially similar, with flowers white or mauve-tinged on the back of the lobes and tube. Flowering between September and April. Fruits are brown ovoid to ellipsoid capsule to 8 mm long. Seeds are light-brown ellipsoid, compressed seed. Seed embryo type is linear, under-developed.
Seed collection and propagation
Collect seeds between December and March. Collect mature capsules that are fat, turning a pale straw-colour and containing brown seeds. Can be time consuming to find mature capsules. Place the capsules in a tray and leave to dry for one week. Rub the capsules gently by hand to dislodge the seeds. Use a sieve to separate the unwanted material. Be careful as the seeds are very small. Store the seeds with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.
|Location||No. of seeds|
|8,500 (0.83 g)|
8,500 (0.83 g)