Appearance
"S. verbenaca" is a tall perennial herb with hairy stems and branches that erectly sprawl out. Its leaves are basal and toothed that vary from 3 to 10 cm long. It has soft purple to violet flowers in mid summer. It is in flower from June to September, and the seeds ripen from July to October. The flowers are bisexual and are pollinated by bees. Some are also cleistogamous and pollinate themselves.References:
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