Achenes dark brown to black, dull to shiny, 3-4 mm, usually ovoid, sharply trigonous, punctate to smooth, apex acute.

• 瘦果黑的棕色到黑色，黯淡到发亮，3-4毫米，通常卵圆形，明显三棱，具点到光滑，先端锐尖。