Colin Mills, compiler of the Hortus Camdenensis, died in late November 2012 after a short illness. As he always considered the Hortus his legacy, it is his family's intention to keep the site running in perpetuity. It will not, however, be updated in the near future.

Trees and Shrubs

A division of the Camden Park catalogues that is not clearly defined. In broad terms it includes all plants with woody stems except conifers and fruit trees and shrubs.

Acacia verticillata (L’Hér.) Willd.

Shrub or small tree with downy shoots, spine-tipped phyllodes in whorls of about 6 and bright yellow flowers in cylindrical spikes in late winter and spring.  To 3m or more.  [RHSD, Hortus, Hilliers', FNSW].

Acer negundo L.

Fully hardy, fast-growing, upright, deciduous tree with pinnate leaves with light green leaflets, turning yellow in autumn. Male and female flowers are borne on separate trees.  To 15m.  [RHSE, Hortus, Hilliers’].

Acer platanoides L.

Fully hardy, vigorous, spreading, deciduous tree with large, broadly ovate, 3-5 lobed, dark green leaves, turning red or yellow in autumn.  It bears small, but conspicuous, upright corymbs of yellow flowers.  To 25m.  [RHSE, Hilliers’].

Acer pseudoplatanus L.

Fully hardy, fast growing, spreading, rounded, deciduous tree with ovate, 5-lobed, dark green leaves.  The pendant panicles of yellow-green flowers are followed by green or red winged fruits.  To 30m.  [RHSE, Hilliers’].

Acer saccharum Marsh.

Fully hardy deciduous tree with a dense rounded crown and large, broadly ovate, mid-green, 3-5 lobed leaves which turn brilliant orange to red and yellow in autumn.  To 40m. An economically important tree, it is tapped for its sap in spring, the source of maple sugar, and also produces the highly prized birds-eye maple timber for cabinet making.  [RHSD, Hilliers’].

Acer saccharum subsp. nigrum (F.Michx.) Desmarais

Large tree with deeply furrowed black bark and 3-lobed leaves.  To 40m.  [RHSD, Hortus]. Distinguished from the Sugar Maple, Acer saccharum Marsh which see, by the 5-lobed leaves of the latter.

Achras sapota L.

Large, spreading tree with elliptic leaves clustered near the end of shoots, and inconspicuous flowers in clusters in the leaf axils, followed by brownish fruit, to 8cm across, sweet and perfumed when very ripe.  [RHSD, Hortus].

Acmena smithii (Poir.) Merr. & L.M.Perry

Frost-tender, rounded, bushy tree with ovate to lance-shaped, glossy dark green leaves and terminal panicles of greenish-white flowers in spring and summer, followed by edible, white, pink, or red-purple berries, ripening in autumn.  To 15m.  [RHSE, Hortus, Beadle, FNSW].

Acmena smithii (Poir.) Merr. & L.M.Perry var. kingii

Probably a more or less distinct variety, of which there are many, but I am unaware of how it varies from the type.  [See Acmena smithii (Poir.) Merr. & L.M.Perry]. 

Acmena species unidentified

Probably a form of Acmena smithii (Poir.) Merr. & L.M.Perry, which see.  This is a somewhat variable species and informal forms or races are recognised, usually varying in leaf [FNSW].

Adansonia digitata L.

Frost tender deciduous tree with a thickened, swollen, succulent trunk with short branches bearing rounded, usually 5-9-palmate leaves and pendant white and purple flowers, borne on long stalks, with or just before, the leaves in summer.  To 18m.  [RHSE].

Adenandra uniflora (L.) Willd.

Frost tender, erect, sparsely-branched, evergreen shrub, the young branches tinged yellow, with lance-shaped leaves and usually solitary white or pink flowers in summer.  To 45cm.  [RHSD].

Adenanthera pavonina L.

Frost tender shrub with 2-pinnate leaves, with oval, hairless leaflets, and long racemes of mixed white and yellow flowers.  To 1.5m.  [RHSD, Hortus].

Adenocarpus species unidentified

Adenocarpus is a genus of some 15 shrubs and small trees from Southern Europe and North Africa with broom-like yellow flowers in spring or summer.

Aesculus hippocastanum L.

Fully hardy, vigorous, spreading, rounded tree with 5-7-palmate, mid-green leaves, with leaflets 30cm or more long, and conical panicles of white flowers, to 30cm tall, in spring and summer, followed by spiny fruits.  To 25m.  [RHSE, Hilliers’].

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