Acanthopanax sieboldianus Makino


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  • A. pentaphyllus (Sieb. & Zucc.) Marchal
  • A. spinosus Hort., not (L.f.) Miq.


Flower-bearing part of a plant; arrangement of flowers on the floral axis.
Inflorescence in which pedicels all arise from same point on peduncle. May be flat-topped (as in e.g. Umbelliferae) to spherical (as in e.g. Araliaceae). umbellate In form of umbel.
(var.) Taxonomic rank (varietas) grouping variants of a species with relatively minor differentiation in a few characters but occurring as recognisable populations. Often loosely used for rare minor variants more usefully ranked as forms.


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A deciduous shrub of loose habit, 8 to 10 ft high, with erect stems and arching, slender branches, often armed with a spine at the base of each leaf­stalk or leaf-cluster; the whole plant without down. Leaves composed of three to (normally) five leaflets, borne on a slender common stalk 112 to 312 in. long; leaflets stalkless, obovate, 1 to 212 in. long, 13 to 1 in. wide, toothed except towards the tapering base. Flowers very small, greenish white, produced during June and later, on a spherical umbel 34 to 1 in. diameter, terminating a slender stalk 2 to 4 in. long. On the year-old wood the leaves are produced in clusters from the previous year’s buds; it is from the centre of this cluster that the inflorescence is borne.

Native of China and Japan; introduced in 1874, but for long confined to cool greenhouses. It is quite hardy if given shelter from north and east, and a most elegant, handsome-foliaged shrub, although destitute of flower beauty. Still more pleasing is the garden variety cv. ‘Variegatus’.


Leaflets are edged with a broad border of creamy white. This is one of the daintiest of variegated shrubs, hardy, but needing a sheltered position. Propagated by cuttings made of short, moderately firm shoots in heat; or of harder wood under a handlight. It was once known in gardens as Panax quinquefolium variegatum. Illustrated in Flore des Serres, tt. 2079-80 (1874).


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