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.
Rhododendron ‘Russelianum’ Sweet
A hybrid of Rhododendron catawbiense Michx. Russelliana is a form with bright rose-coloured flowers. [PD]. This plant is still available.
Rhododendron ‘Tigrinum’
A hybrid of Rhododendron catawbiense Michx. Tigrinum is a hybrid with rose-coloured flowers. [PD]. The other parent is not given and it may be a cultivar, in which case it is properly called Rhododendron catawbiense ‘Tigrinum’.
Rhododendron ‘Victoria’
It is likely that more than one English hybrid or cultivar was called ‘Victoria’ or similar. For example Rhododendron ‘Victoria Reginae’ was exhibited at the Massachusetts Horticultural Society on April 19th, 1889. [Wilson & Rehder p.99]. The authors suggest that this hybrid belongs to a group of hybrids raised by William Smith of Norbiton in 1842 between a hardy Rhododendron seedling and Azalea [Rhododendron] sinensis Sweet, called at the time Rhododendron Smithii or Rhododendron x Smithii, or alternatively that the parentage is ‘a yellow form of the Chinese Azalea and Rhododendron caucasicum, the latter of which it resembles in habit.’ [Robinson, Fl. and Sylva II, 152/1904, quoted in Wilson & Rehder loc cit]. If this association is correct then ‘Victoria Reginae’ could be synonymous with Macarthur’s ‘Victoria’. I have found no specific description of ‘Victoria’. Rhododendron x Smithii aureum is figured in Paxton’s Magazine of Botany [MB p.79/1842].
Rhododendron anthopogon D.Don
Compact dwarf shrub with scaly branchlets, leaves to 3cm long, and terminal clusters of narrowly tubular cream to deep pink flowers in spring. To 60cm. [RHSD, Hortus, Hilliers’].
Rhododendron arborescens Torr.
A late flowering, deciduous, tall and upright azalea with glossy, oval leaves, often tinted in autumn, and fragrant, long-tubed, white flowers, sometimes with a pink or reddish flush and a yellow blotch, in summer. It blooms after the leaves open. To 5m. [RHSD, Hortus, Hilliers’, Lee].
Rhododendron arboreum Sm.
Evergreen tree with lance-shaped, wrinkled leaves, to 19cm long, with dense trusses of tubular-bell-shaped, red, pink or white flowers, to 5cm long, with black spots inside, in spring. To 12m by 4m. [RHSE, Hortus, Hilliers’, Millais].
Rhododendron arboreum Sm. ssp. cinnamomeum (Lindl.) Tagg.
See Rhododendron arboreum Sm. for details. Cinnamomeum has flat leaves, to 11cm long, a whitish under-surface to its leaves and white flowers, sometimes with purple or yellowish spots. [RHSD, Millais]. It appears to be almost identical to Rhododendron arboreum Sm. var. album.
Rhododendron arboreum Sm. ssp. zeylanicum
See Rhododendron arboreum Sm. for details. Zeylanicum has rich pink flowers. [RHSD].
Rhododendron arboreum Sm. Var. album
A white flowered form of Rhododendron arboreum. [Hilliers']. See Rhododendron arboreum Sm. for more detail.
Rhododendron arboreum Sm. var. venustum
See Rhododendron arboreum Sm. for details. I have no specific description of venustum which may be merely a synonym for R. arboreum. See Notes for further explanation.
Rhododendron barbatum G.Don
Large shrub or small tree with coloured stems and peeling bark and bell-shaped crimson-scarlet flowers in globular heads. [RHSD, Hortus, Hilliers’].
Rhododendron calendulaceum ‘Aurantiaca Variegata’
Probably a cultivar of Rhododendron calendulaceum (Michx.) Torr. and treated as such here. Azalea aurantiaca Dietr. is a synonym of Rhododendron calendulaceum and this may be a form, possibly naturally occurring, with variegated flowers or leaves.
