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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:
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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 Rubus, Key A: Raspberries

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1 Stems creeping to trailing, 1-3 dm tall; petals 4-7 mm long, pink
1 Stems arching to erect, 5-25 (-30) dm tall; petals either 5-15 (-18) mm long, white, or 4-6 mm long, white or pink (R. phoenicolasius).
  2 Floricane leaves pinnately (3-) 5-9-foliolate; aggregate fruit with 50-100 drupelets
  2 Floricane leaves 1-3-foliolate; aggregate fruit with 10-60 drupelets.
    3 Inflorescence paniculiform, many-flowered; berries sticky, purplish-red, lacking a glaucous bloom
    3 Inflorescence corymbiform, few-flowered; berries not sticky, black or red (rarely purplish or yellow), with a glaucous bloom.
image of plant
Show caption*© Gary P. Fleming
      4 Fruit black (rarely yellow); pedicels with stout curved prickles; stems (at least the primocanes) strongly white-glaucous
      4 Fruit red (rarely purple or yellow); pedicels with narrow straight bristles and sometimes also glandular hairs; stems green.
        5 Leaves green, sparsely soft-hairy beneath; inflorescences with 1 (-3)-flowers
        5 Leaves densely white-tomentose beneath; inflorescences with (1-) 3-7 (-20) flowers.
          6 Inflorescence without glandular hairs or gland-tipped bristles; [exotic, cultivated, sometimes escaped or persistent]
          6 Inflorescence with glandular hairs and gland-tipped bristles; [native, Mountains of NC and VA northwards]