ruellia prostrata, commonly know bell weed, prostrate wild petunia, black weed

acanthais acanthus are axils bell black blue botanical capsules ceae clubshaped commonly conspicuously covered densely family fine flowers green hairs have herb know leaf leaves lower name nearly nodes occasionally occur often ovate paler perennial petals petunia poir prostrata prostrate rooting ruellia slightly solitary spreading stems surface violet weed white wild