Hypericum, from the Greek 'hyper', meaning above and 'icon' meaning image, referring to plants from the genus being hung above religious figures to ward off evil spirits. Gramineum, from the Latin 'gramen', meaning grass, referring to the grass-like stems.
Distribution and status
Found mainly in the southern part of South Australia, with scattered records across the northern part; growing in sandy soils along rivers, creeks and flood-plain. Also found in all States. Native. Common in South Australia. Common in the other States.
Herbarium regions: North Western, Lake Eyre, Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Southern Lofty, Kangaroo Island, South Eastern
NRM regions: Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
AVH map: SA distribution map (external link)
Erect perennial herb to 40 cm high; often rhizomatous and shortly creeping at base; stems with 4-ridges; internodes usually longer than leaves. Leaves ovate to narrowly elliptic or oblong, to 20 mm long and 7 mm wide, often glaucous; at least the upper most, erect and stem-clasping; margins usually recurved. Flowers in leafy clusters with orange-yellow, not black-dotted petals. Flowering between October to March. Fruits are brown ovoid capsule to 8 mm long. Seeds are brown oblong seed to 0.6 mm long and 0.3 mm wide, surface tuberculous.
Seed collection and propagation
Collect seeds between June and January. Collect maturing capsules, those turning pale-brown with brown seeds inside. Place the capsules in a tray and leave to dry for a week. Then rub the dried 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. From three collections, the seed viability was high, ranging from 80% to 100%.
|Location||No. of seeds|
|4,000 (0.26 g)|
4,000 (0.26 g)
|BGA||119,800 (2.78 g)||20||3-Jan-2007||RJB70979D|
|BGA||13,000 (0.55 g)||50||13-Dec-2007||RJB76275|