Vaccinium macrocarponAiton

American Cranberry

WFO wfo-0000422267 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Vaccinium macrocarpon, photographed by Lynn Harper
fig. a Lynn Harper, CC0 1.0 / 2022-06-13 / obs. 205884544

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Confused withby our own model

These are not lookalikes we guessed at. Each one is a species our identification model genuinely mistook for this plant, and how many times. The error rate is published.

Flowering n = 447 observations

Flowering observations of Vaccinium macrocarpon by month
MonthObservations
Jan0
Feb0
Mar0
Apr0
May15
Jun153
Jul251
Aug22
Sep3
Oct1
Nov1
Dec1

Peak flowering in Jul, from 447 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 8 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Oxycoca berberidacea Raf.
  • Oxycoca macrocarpa (Aiton) Raf.
  • Oxycoccus macrocarpus (Aiton) Pers.
  • Oxycoccus palustris var. macrocarpos (Aiton) Pers.
  • Schollera macrocarpa (Aiton) Steud.
  • Schollera macrocarpos (Aiton) Britton
  • Vaccinium oblongifolium (Michx.) hort. ex Dun
  • Vaccinium propinquum Salisb.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.

We publish what we can source and we say so when we cannot. This page has no care advice, no toxicity claim and no native range, because we do not yet have those from a source we can cite.