46a. Calyx-teeth spiny pointed (flowers pink or pale-purple) (Hemp Nettle) --47. 46b. Calyx-teeth acute to awl-shape, but not spiny (3-10 dm. high; flowers pale-purple) (Hedge Nettle) --48. 47a. Leaves ovate (3-8 dm. high) =Hemp Nettle, Galeopsis tetrahit.= 47b. Leaves linear to lanceolate (1-4 dm. high) =Hemp Nettle, Galeopsis ladanum.= 48a. Leaves glabrous --49. 48b. Leaves distinctly pubescent --50. 49a. Leaves ovate-lanceolate, serrate =Hedge Nettle, Stachys tenuifolia.= 49b. Leaves linear-oblong, entire or nearly so =Hedge Nettle, Stachys hyssopifolia.= 50a. Stem pubescent on the angles alone; leaves petioled =Hedge Nettle, Stachys tenuifolia var. aspera.= 50b. Stem pubescent on both sides and angles; leaves nearly sessile --51. 51a. Leaves oblong or oblong-lanceolate, more than 1 cm. wide =Hedge Nettle, Stachys palustris.= 51b. Leaves linear-lanceolate, 1 cm. wide or less =Hedge Nettle, Stachys arenicola.= VERBENACEAE, the Verbena Family Herbs, with simple opposite leaves and slightly irregular flowers in spikes or heads; petals 5, united and bearing the 4 stamens in the corolla-tube; ovary 1, 2-celled or 4-celled, with 1 style. 1a. Plants prostrate or spreading --2. 1b. Plants erect (flowers in summer) (Vervain) --3. 2a. Leaves serrate; flowers in short dense spikes (flowers pale-blue, summer) =Fog Fruit, Lippia lanceolata.= 2b. Leaves pinnatifid; flowers in loose bracted spikes (flowers light-purple, summer) =Vervain, Verbena bracteosa.= 3a. Spikes dense, continuous (flowers purple or blue, varying to white) --4. 3b. Spikes slender, interrupted, the flowers scattered (corolla white or pale-blue) --6. 4a. Leaves lanceolate, manifestly petioled (1-2 m. high) =Vervain, Verbena hastata.= 4b. Leaves sessile, not lanceolate (5-8 dm. high) --5. 5a. Leaves narrowly oblanceolate, tapering at the entire base =Vervain, Verbena angustifolia.= 5b. Leaves oblong to obovate, not tapering at the base =Vervain, Verbena stricta.= 6a. Leaves incised, tapering to a sessile base (5-10 dm. high) =Vervain, Verbena, officinalis.= 6b. Leaves serrate, petioled (1-2 m. high) =Vervain, Verbena urticaefolia.= SOLANACEAE, the Nightshade Family Herbs or shrubs, with alternate leaves and regular or slightly irregular flowers; sepals 5, united; corolla of 5 united petals, bearing the 5 stamens attached; ovary 1, 2-5 (usually 2)-celled, with a slender style.