Verbena L.

Plants erect not rooting at nodes Verbena

Leaves shortly petiolate entire to deeply divided. Spikes dense at flowering but often elongating in fruit

Corolla limb 2–5 mm diam.; the tube up to c. 4 mm long. Calyx c. 3 mm long

Leaves coarsely toothed. Peduncles usually naked for some distance below the spike

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Spikes elongating in fruit. Hispid with simple hairs, becoming almost glabrous on the older parts. Corolla blue-purple. Leaves elliptic to lanceolate, 2–9 cm long. Erect, perennial herb up to c. 1 m high. Widespread. Weed of cultivation and waste places. Introd. from S. America. Fl. spring–summer Verbena litoralis littoralis

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Spikes not elongating in the fruit but sometimes slightly spreading at the base. Villous, becoming glabrous on the stems. Corolla white to purple. Leaves narrow-ovate, up to 5 cm long. Perennial herb up to 2 m high. Coast; Cumberland Plain. Weed of cultivation and waste places. Introd. from S. America. Fl. most of the year Verbena littoralis brasiliensis