Robinia L.


Commemorating Jean Robin (1550–1629) and his son Vespasien Robin (1579–1662), herbalists to Henry IV, King of France; they probably introduced this plant to France.

Deciduous trees or shrubs. Leaves alternate, odd-pinnate, stalked; stipules often present as paired spines. Leaflets more or less opposite, entire and with stipellae. Flowers axillary, erect or pendent. Calyx bellshaped with short teeth, more or less 2-lipped. Corolla with standard bent back, purplish, pink or white. Stamens 10, 9 united, 1 generally free. Fruit pod linear, flattened, stalked and with a narrow wing along the upper suture, sometimes bristled and containing few to many seeds.

Formerly a genus of 20 or so species but only 4 species are currently recognised.

R. hispida L., Rose Acacia, is occasionally cultivated as a bristly shrub to 3 m tall with 9-13 leaflets per leaf. There are a number of varieties that occur in the wild and of these, var. fertilis (Ashe) Clausen is sometimes cultivated; it has leaflets mostly 1.2-1.8 times as long as wide and is slightly unusual in bearing fruit and having bristles on young shoots and leaves. Possibly naturalised, at least in SA. Syn R. fertilis Ashe.

R. viscosa Vent., Clammy Locust, is occasionally listed; it grows to about 10 m tall and has extremely sticky new growth.

4 species from S and E USA.

Seed, cuttings and root division. Cultivars are generally grafted on R. pseudoacacia.

R. pseudoacacia for its timber but in Australia it is of reduced size owing to rapid growth.

Leaflets opposite, stipels present and persistent; flowers pendulous; pods flat.

OPCAA Collection, Emerald, Vic.

Isely & Peabody (1984).

Source: Spencer, R. (2002). Fabaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.

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Cultivar of uncertain origin

Robinia 'Casque Rouge'

This cultivar is possibly confused with others. It was already in American nurseries c. 1959 and more widely int. after 1992 when Duncan and Davies Nsy in New Zealand released it. The oldest name for this cultivar is possibly 'Pink Cascade' and it is also possible that the European trademark name, r. _slavinii, 'Purple Crown' is a synonym, although this name was given pbr in Australia.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Rosanae
order      Fabales
family       Fabaceae
Higher taxa
Subordinate taxa
species         Robinia ×ambigua Poir.
species         Robinia pseudoacacia L.
species         Robinia ×slavinii Rehder