Colors

Data mode

Account

Login
Sign up

Collapse this

Support the Flora of the Southeastern US

2024 has been a banner year for making the best flora we can imagine. We've created:
With financial support from people like you, we are aiming even higher in 2025. Together we can accomplish all this: Vote on our 2025 priorities
  • Add Global Conservation Ranks (GRanks) vote
  • Professional graphic keys (polyclaves) to individual families/genera vote
  • 2 new FloraQuest apps: Florida & Mid-South vote
  • Image overlays highlighting diagnostic characters with arrows vote
  • iNaturalist integration in FloraQuest vote
Write-in vote: vote
We've set a goal of recruiting 200 ongoing supporters to donate $15 or more each month in 2025. Please help us reach this goal and make next year's flora even better:

Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Key to Actaea

Copy permalink to share

1 Terminal leaflet deeply cordate, mostly > 12 cm wide, with 7-9 major veins arising palmately from the base; principal leaves with 3-9 (-17) leaflets; [section Oligocarpae]
1 Terminal leaflet broadly cuneate, rounded, truncate, or subcordate, mostly < 12 cm wide, with 3 major veins arising from the base; principal leaves with (15-) 20-70 leaflets.
  2 Carpels 3-8, on a stipe elongating to 5-8 mm long in fruit; flowering Jul-Sep; petiole of basal leaves with a deep, broad groove (ca. 1 mm wide and 1 mm deep), persistent on fully expanded leaves; roots with vascular tissue in lunate bundles arranged in a circle; [section Podocarpae]
  2 Carpels 1 (-3), sessile; flowering Apr-Aug; petiole of basal leaves terete, not grooved (or with a shallow, narrow groove early, obscure or absent on fully expanded leaves); roots with vascular tissue in a central (3-) 4 (-5)-armed cross or star; [section Actaea].
    3 Fruit dry, follicular, dehiscent; flowering May-Aug
    3 Fruit fleshy, indehiscent; flowering Apr-May.
      4 Fruiting pedicels thick, 1-2 mm in diameter; fruit white (rarely red); stigma wider than ovary (in flower); leaflets usually glabrous across the lower surface; [widespread in our area]
      4 Fruiting pedicels slender, 0.4-0.7 mm in diameter; fruit red (rarely white); stigma narrower than ovary (in flower); leaflets usually pubescent across the lower surface; [northern, south to NJ, PA, OH, IN, and IL]