Dig deeper at SERNEC, a consortium of southeastern herbaria.
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Malvids: Myrtales
Northern Winged Loosestrife
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Richard and Teresa Ware rtw_l_alatum
The corolla has six narrow lobes that spread outward from a tubular calyx, per www.illinoiswildflowers.info.
Richard and Teresa Ware rtw_l_alatum_b
1-2 flowers in the axils of small leafy bracts, crowded along the spike, per www.illinoiswildflowers.info.
Richard and Teresa Ware rtw_lythrum_alatum
To 3' tall, branching occasionally; central stem strongly winged, hairless, per www.illinoiswildflowers.info.
Richard and Teresa Ware rtw_lythrum_alatum_c
Each corolla lobe has a fine line of purple that leads to the flower throat, per www.illinoiswildflowers.info.