Seeds of South Australia
Pultenaea kraehenbuehlii (Leguminosae)
Tothill Bush-pea
List of species for Pultenaea
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Seed collecting:
October to December
Herbarium region:
Northern Lofty
NRM region:
Northern and Yorke
IBRA region
Broughton (FLB02)Flinders Lofty Block
 Rare   (IUCN: RA d(i))   [endemic to Tothills]
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. Kraehenbuehlii named after Darrell N. Kraehenbuehl (1934-), a South Australian conservationist and botanist.
Distribution:
Endemic to South Australia and found only in the Tothill Range, growing in open grassland to open low woodland sometime dominated by Allocasuarina verticillata.
Status:
Native. Rare in South Australia.
Plant description:
Erect to prostrate shrub to 2 m high with smooth grey-brown bark. Leaves alternate, to 9 mm long and 4 mm wide, orbicular to linear or obovate, straight, flat, widest point at or above the middle, smooth, apex acute to rounded, glabrous. Inflorenscences in dense clusters with yellow and orange pea-flowers. Flowering between August and September.
Fruit type:
Brown ovoid pod to 8.8 mm long.
Embryo type:
Bent.
Seed collecting:
Collect maturing pods, those that are brown or turning brown and contain hard 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.