The exact term "柱础壶" (literally "pillar‑base teapot") is not a standard, widely recorded historical category in major ceramic catalogs, so its precise canonical details are ambiguous. The name, however, clearly evokes an architectural motif — the stone or wooden block (柱础) that supports a column — and the design is best understood as a teapot whose silhouette references that element.

Historically, Chinese teapot forms have often borrowed from everyday and architectural objects; Yixing and studio potters from the late Ming through modern periods experimented with geometric and found‑object shapes. A pillar‑base inspired form would sit within that long tradition of object‑inspired design: functional, sculptural, and emphasizing material and proportion over applied ornament.

Shape note: expect a compact, generally cylindrical or slightly truncated columnar body with straight or subtly flared sides, a flat or gently domed lid that aligns with the top plane, and simple spout and handle that balance the vertical mass. Surface treatment is typically restrained — plain clay, subtle burnish, or minimal carving — to keep attention on the columnar geometry and proportion.
Wood-fired handmade Yixing teapot made from Duanni clay sourced from the original Huanglongshan mine. Xu Shun Wei.