← Telling look-alikes apart

Every change

How telling look-alikes apart grew, newest first — the same plain notes that go out with each update.

Version 0.38

October 9, 2026
  • Pages now point to each other where it helps. A region opens its look-alikes and native swaps, a list of invasives ends with what to grow instead, and About links the settings it mentions.

Version 0.32

September 19, 2026
  • on a laptop these pages use the width they have. The photograph sits beside the text, and each thing being compared reads across one line instead of three.
  • "Photos on iNaturalist" opens the plant's own page there, rather than a list of search results to pick from.

Version 0.30

September 18, 2026
  • an impostor now says how hard it pushes here, not just that it's invasive — takes over, gaining ground, or in patches — with the body that scored it named beside it. See the look-alikes
  • where the law is all anyone has published, we print the law and say what it asks. Washington's Class C doesn't mean a blackberry is mild; it means it's already everywhere.
  • tap "Gaining ground" and it tells you what it means, where it sits on the three steps, and who scored it — a tooltip only works if you have a mouse, and most of you don't.
  • the index now spells out the whole scale, where the words come from, and what a card with no badge means — nobody has scored that ground yet, which is not the same as harmless.

Version 0.28

August 30, 2026
  • A share card for every look-alike. Post a link to a plant often mistaken for a native and the preview now shows it in a cautioning amber, where it's really from, and how many natives it's confused with — the look-alikes page gets one too.

Version 0.27

August 28, 2026
  • The impostor and the real thing, side by side. Every look-alike now has a photograph, shown next to the native it gets mistaken for — two pictures in one row, above the words that tell them apart. Tap either to swap between them full size. Look-alikes
  • And a picture on every card in that list. The look-alikes index used to be names and paragraphs; now each one leads with the plant, for the reader standing under a street tree trying to work out which it is.
  • *A look-alike is only invasive somewhere.* The list called plants invasive or not-from-here before you'd picked a region — and a few of them are natives of ours. Each now names the regions where it's a problem, on the list and on its own page. Look-alikes
  • A look-alike's write-up ran to the edges of its card. The description and its sources sat flush against the border while everything above them was indented. They line up now.

Version 0.25

August 8, 2026
  • Cow parsnip has a dangerous twin, and the app now says which is which. Giant hogweed is twice the height and its sap can blind. Both burn skin in sunlight, so the look-alike page gives you the tells from a safe distance.

Version 0.24

August 7, 2026
  • Three plants a nursery might sell you by mistake in southern California. Tropical milkweed beside the native narrowleaf one, pampas grass beside deergrass, firethorn beside toyon — each with the tells you can check standing in front of the plant. See them.
  • The French edition is finished. Choosing French used to translate the buttons and then hand you English paragraphs. Every one of them is now in French: all 229 plants, the 65 animals and the 27 look-alikes.

Version 0.18

July 31, 2026
  • A new section of the app for the plants that get mistaken for natives. Look-alikes puts each impostor beside the native it's sold as, with the differences you can check standing in front of them: a smell, a thorn, a hollow twig. Start with the Callery pear.
  • Every plant page says what it gets confused with, in one line. Under "Why it belongs here" you'll find Don't confuse it with and the names, each linking to the full comparison.
  • The label says which kind of impostor it is. Some spread into wild places and cost us something; some are ordinary garden plants from elsewhere that do no harm. So each is marked Invasive here, Not from here or Native here too — for the region you're looking at.