Kangaroo Island Iris
Orthrosanthus from the Greek 'orthros' meaning morning and 'anthos' meaning flower; referring to the short-lived flowers which open before noon. Multiflorus from the Latin 'multus' meaning many and 'floris' meaning flower.
Distribution and status
Found on the bottom of the Eyre Peninsula, Kangaroo Island and the southern Mount Lofty Ranges in South Australia, growing in heath and stunted mallee on coastal dunes and limestone. Also found in Western Australia and Victoria. Native. Uncommon in South Australia. Uncommon in Western Australia. Rare in Victoria.
Herbarium regions: Eyre Peninsula, Southern Lofty, Kangaroo Island
NRM regions: Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island
AVH map: SA distribution map (external link)
Perennial sedge-like tuft to 60 cm high. Leaves to 50 cm long and 5 mm wide, glabrous, finely striate, with dry brown overlapping margins at the base. Inflorescence a long spike with scattered clusters of 3-7 large sky-blue flowers. Flowering between August and November. Fruits are brown capsule to 20 mm long scattered along the the top of stems. Seeds are orange to brown ovoid seed to 1.2 mm long and 1 mm wide, with a wrinkled surface. Seed embryo type is linear under-developed.
Seed collection and propagation
Collect seeds between November and January. Collect mature capsules, those that are drying off and turning pale brown with hard brown seeds inside. Place the capsules in a tray and leave to dry for one to two weeks. Then rub the capsules gently by hand to dislodge the seeds. Use a sieve to separate the unwanted material. 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. From one collection, the seed viability was high, at 100%.
|Location||No. of seeds|
|6,500 (5.24 g)|
6,500 (5.24 g)