Verbenaceae: Vervain Family

Western Vervain – Verbena lasiostachys var. lasiostachys

Blooms:

May–Sept

Plant Height:

35–80 cm

Flower Size:

Large cluster

Origin:

Native

Habitat:

Open dry to wet places

Notes:

This is the most common of the vervains, producing multiple decumbent to erect spikes of small pale purple flowers. The spikes can be 7–25 cm long in fruit. Leaves are gray-green, toothed, oval, generally soft, slightly hairy and opposite in hairy square stems.

Purpletop Vervain – Verbena bonariensis

Blooms:

June–Oct

Plant Height:

40–150 cm

Flower Size:

Small cluster

Origin:

South AMerica

Habitat:

Disturbed places

Notes:

Widely cultivated and sometimes escaping, this has one or more erect stems each with one or more compact heads of many, small, intense dark pink or purple flowers with reddish throats. The leaves are clasping, 7–15 cm long, elliptic to lanceolate and coarsely serrated.