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Section Lupulinae

See list of 4 species in this section

Reference: Reznicek (2002a).

  • 1a. Carpellate spikes spherical to short-ovoid, 1–4.2 cm long; lowermost bract of inflorescence usually sheathless or with a sheath shorter than 3 mm; achenes ellipsoid to obovoid; beak of perigynium 1.5–4.2 mm long
    • 2a. Carpellate spikes spherical, with 8–35 perigynia radiating in all directions; base of perigynium cuneate; surface of perigynium dull
    • 2b. Carpellate spikes mostly short-ovoid, with 1–12 (–20) usually ascending to spreading perigynia (uncommonly the lower perigynia are reflexed); base of perigynium convexly rounded; surface of perigynium somewhat lustrous
  • 1b. Carpellate spikes ovoid to cylindric, 1.5–8 cm long; lowermost bract of inflorescence with a closed sheath 5–150 mm long; achenes rhomboid; beak of perigynium 6–10 mm long

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