小果酸模 Rumex
microcarpus 蓼科
齒果酸模在台灣有另一近似種,未結果時,兩者很難區分。果期則可見本種宿存花被片相對較小-邊緣齒牙少 (0-1),明顯與齒果之4對齒牙不同。
小果酸模-零星分布於南部漁塭荒野。植株形態與齒果酸模近似。葉橢圓披針形。 |
果期-基生葉幾乎落盡。 |
莖生葉-長橢圓披針形至卵狀橢圓形。 |
果時-宿存花被片邊緣僅見一對刺齒。 |
刺齒也可能闕如。 |
成熟瘦果紅褐色。 |
後記:齒果酸模的內輪宿存花被片每邊有2至4個刺齒,通常是3個,小果酸模是每邊有0至1個短刺齒,而且瘤狀物比較大,但是臺灣的族群有時是0至2個短刺齒,同一朵花的3片內輪宿存花被片不一定會一樣,1至2個短刺有另一個學名叫 Rumex dentatus subsp. nigricans,但是臺灣的族群是介於 Rumex microcarpus 和 Rumex dentatus subsp. nigricans 之間。
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