Zamia lawsoniana
species of plant
Zamia lawsoniana, commonly known as pozol agrio, is a species of plant in the family Zamiaceae.
Etymology
The epithet "lawsoniana" refers to the botanist John Lawson who collected specimens of the species.
Classification history
Zamia lawsoniana was first described in 1884 by Dyer based on a specimen from Oaxaca, Mexico. It was later reclassified as a synonym of Z. loddigesii. It was removed from synonymy and restored as a valid species in 2024, and is recognized by the World Flora Online, the World List of Cycads, and Tropicos.
Description
Zamia lawsoniana has an underground stem, branching in older plants, up to 60 centimetres (24 in) long and 18 centimetres (7.1 in) in diameter. There are two to five (rarely up to 14) compound leaves on a stem apex, standing upright. Leaves are 66 to 163 centimetres (26 to 64 in) long, emerging light-green, darkening to green when mature. The petiole (leaf stalk) is 18 to 52.3 centimetres (7.1 to 20.6 in) long, covered with thin prickles up to 3.4 millimetres (0.13 in) long. The rachis (leaf shaft), 32 to 66.5 centimetres (12.6 to 26.2 in) long, is also covered with prickles on the third of its length towards the base of the leaf.
This brief starts where responsible research should: with the source description of “Zamia lawsoniana” as species of plant. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the science & nature register because the source frames it as species of plant. Its deeper value depends on whether names, dates, institutions and citations support that framing.
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 Aug 2, 2026. The linked authority identifier is Q15051350. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1884 and 2024.
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This entry incorporates text from “Zamia lawsoniana” 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.