ORNAMENTAL PLANTS OF HORTICULTURE VALUE

Selection of perennials

About 50 species in the Northern Hemisphere, 31 biennial and perennial in the FSU, principally in the Far East.

A. ursina (Rupr.) Maxim.

Far East (Kamchatka, Sakhalin and southern Kuril Islands) and northern Japan. Together with other perennial species it develops a special tall herbaceous plant community, which can be seen along streams in forest clearings, in association with willow stands.

Taproot thick and long. Flowering stem 2-3 (4) m one per plant, 7-9 cm diam. near the base, hollow. Basal leaves with petioles up to 70 cm long. Tripinnate blades 20-70 cm x 20-40 cm. Upper leaves reduced to leaf sheath. Compound umbel very large, of numerous small umbels. Flowers white. V - mid-spring to mid-autumn. Fl - July-August. Fr - September. P - by seed. Self-sowing plant. Does well on moist soil and in a sunny position. Good for the tall herbaceous border or wild garden. Z 5 (4). New.

Also of garden interest.

A. cincta Boiss. (=A. amurensis Schischk.).

Southern part of the Far East, northern China and Japan. In deciduous forests, among shrubs. Flowering stem 1-2 m in continental part of distribution range, to 4 m on Sakhalin Island. New.