Heika (also called rikka, shoka, or seika) is a basic style of ikebana arrangement that uses a tall vase and highlights vertical lines. The biggest feature is the emphasis on bringing out the flowers' natural charms and arranging them in a tasteful and elegant manner.
Vases with a narrow opening or tall, jar-shaped containers are used, with the stems being bundled tightly together at the mouth. Crosspieces are used to fasten the stems to the vase.
Heika arrangements consist of three main elements--the primary, secondary, and ornamental stems; their lengths, positions, and angles differ depending on the type of heika style used. In the slanting style, one of the most popular heika arrangements, the length of the primary stem is one and a half times the height of the vase, and the secondary and ornamental stems are around half the length of the primary branch.
The primary stem is tilted forward around 70 degrees and scattered across a 45-degree area to the front and left. The secondary stem is placed behind and to the left of the primary one to give depth. The ornamental stem is arranged so that it slants forward at a 60-degree angle across a 30-degree area to the right of the primary and secondary elements.