Hardenbergia violacea

Purple Coral Pea

The flowers are arranged in racemes of between twenty and forty flowers, each on a pedicel mostly 2–4 mm long
The sepals are 3–4 mm long and joined at the base, forming a bell-shaped tube with triangular teeth
The petals are about 8 mm long, mostly purple, the standard petal with a yellowish spot and a notch on the summit, the wings are egg-shaped with the narrower end towards the base and the keel is curved
Flowering mostly occurs from August to November and the fruit is a pod 20–45 mm long containing between six and eight kidney-shaped seeds
The flowers are usually purple or violet, but pink, white and other colours sometimes occur

Fruit:

Leaves:

The leaves are egg-shaped to lance-shaped, 30–100 mm long and 10–50 mm wide on a petiole about 10 mm long
The leaves are leathery, glabrous and paler on the lower surface

Stem & branches:

Roots:

It regrows from its roots after fire
The roots were experimented with by early European settlers as a substitute for sarsaparilla

Habit:

Habitat:

It grows in a variety of habitats but is more common in open forests, woodlands and undisturbed areas
From sea level to about 1,000 m above sea level

Distribution:

Endemic to Australia
It occurs in eastern Queensland, eastern New South Wales, south-eastern Victoria and southern South Australia. There is a single population in Tasmania, where the species is listed as "endangered" under the Tasmanian Government Threatened Species Protection Act 1995.

Additional notes:

Taxonomy
- False sarsaparilla was first formally described in 1793 by George Voorhelm Schneevoogt who gave it the name Glycine violacea in his book, Icones Plantarum Rariorum
- In 1940, William T. Stearn changed the name to Hardenbergia violacea
Use in horticulture
- It is widely grown as a garden plant, with many cultivars now available
- It is hardy in mild and coastal areas of the United Kingdom where temperatures do not fall below −5 °C, but it does require a sheltered, south or west facing situation
- Alternatively it may be grown indoors with full daylight, for instance in an unheated conservatory or greenhouse
- It has been given the Royal Horticultural Society's Award of Garden Merit
- The seeds of H. violacea remain viable for many years and propagation is from seeds that have been treated by adding boiling water to them or by abrading the seed coat
- Plants prefer full sun in well-drained soil, are moderately frost-tolerant and respond well to pruning

Sources of information:

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