Pediocactus knowltonii
species of plant
Pediocactus knowltonii is a rare species of cactus known by the common names Knowlton's miniature cactus, Knowlton's pincushion cactus, and Knowlton's minute cactus.
Description
A tiny cactus, it may reach a maximum size of 55 millimeters tall by 30 mm wide. It is often smaller, growing to the size of a US penny. An individual is considered to be an adult when it exceeds 10 mm in diameter. It is spherical or somewhat cylindrical in shape. The areoles are round and covered in hairs. Each areole has up to 26 radial spines which are red, pink, or white in color. The spines are less than 2 mm long. The plant produces a flower up to 35 mm long by 25 mm wide with pinkish tepals, the outer ones sporting brownish midstripes. The fruit is green, ripening reddish, and measures about 4 mm long.
The public source identifies “Pediocactus knowltonii” as species of plant. This brief keeps that definition visible, then builds a research path around Pediocactus, knowltonii and species.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Oct 4, 2025. The linked authority identifier is Q150706. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Pediocactus knowltonii” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.