Seeds of South Australia
Pultenaea involucrata (Leguminosae)
Mount Lofty Bush-pea
List of species for Pultenaea
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Seed collecting:
November to January
Herbarium region:
Southern Lofty
NRM region:
Adelaide and Mount Lofty Ranges
IBRA regions
Fleurieu (KAN02)Kanmantoo
 Near Threatened   [restricted to higher rainfall areas]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Near Threatened   [restricted to Lofties, in higher rainfall areas]
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Pultenaea]
Name derivation:
Pultenaea named after Richard Pulteney (1730-1801), an English physician, botanist and biographer of Carl Linnaeus. Involucrata from the Latin 'involvere' meaning to wrap or having a wrapper; referring to the numerous bracts that surround the flowers.
Distribution:
Endemic to South Australia and found only in the southern Mount Lofty Ranges, growing in sclerophyll woodland in higher rainfall areas.
Status:
Native. Uncommon in South Australia.
Plant description:
Compact shrubs to 1 m high with stems covered in hairs. Leaves rather crowded, ovate-lanceolate to narrow-lanceolate, to 12 mm long, rigid, concave and glabrous above, with a distinct midrib on both faces, hair below and on margins. Inflorescence solitary yellow flowers to 8 mm long, at the end of very short leafy branchlets, each flower surrounded by numerous imbricate bracts, which gradually increase in size towards the calyx. Flowering between August and December.
Fruit type:
Hairy brown ovoid pod to 4 mm long.
Seed type:
Dark brown with black mottled reniform seed to 2.5 mm long and 1.5 mm wide, with a cream aril.
Embryo type:
Bent.
Seed collecting:
Collect maturing pods, those that are brown or turning brown and contain hard dark seeds inside.
Seed cleaning:
Place the pods in a paper bag and leave to dry for one to two weeks. Then rub the pods with a rubber bung 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.
Seed germination:
This species has physical dormancy that needs to be overcome for the seed to germinate. The seed coat needs to be ruptured so that water can enter the seed before germination can occur. Methods to rupture the seed coat include scarification with sand paper or nicking the seed coat with a sharp blade or hot water treatment by immersion in boiling water.