The exact form denoted by the Chinese name 水平壶 (shuǐpíng hù, literally “horizontal teapot”) is not widely recorded as a fixed, canonical shape, so its identification is somewhat ambiguous. Below is a safe, general description and context based on the name and common Chinese teapot traditions.

Brief history
Chinese teapot-making evolved most notably from the late Ming into the Qing dynasty, with regional workshops (especially Yixing in Jiangsu) producing many named and experimental forms for the gongfu tea ritual. Names often describe posture, orientation or imagery rather than strict pattern books; makers and connoisseurs coined expressive titles for creative variants. A “horizontal” designation likely belongs to this informal naming practice and reflects an aesthetic/functional variant rather than a single historic lineage.

Short note about the shape
By name, a 水平壶 suggests a low, flattened or laterally oriented silhouette — a body whose principal axis runs parallel to the table surface. Such designs typically emphasize a broad, stable footprint, balanced spout-and-handle alignment, and a compact capacity suitable for concentrated brewing. The form is both decorative and functional: visually novel on a tea tray, with a center of gravity favoring steadiness and a short path for pouring. Materials and finishing (Yixing zisha, glaze, engraving) vary by maker.
Wood-fired handmade Yixing teapot made from Duanni clay sourced from the original Huanglongshan mine. Xu Shun Wei.