DIDYNAMIA, GYMNOSPERMIA. » 41 
1. V. stem decumbent, very much divaricate- spuria. 
branched ; leaves multifid, laciniate, spikes fili- 
form, bractes longer than the calix.— Willd. and 
Pursh. 
Bastard Vervain. 
About twelve or fifteen inches high. Leaves greyish-green. 
Flowers blue, very small. The whole plant strongly resembles 
Verbena officinalis. In the suburbs of Southwark and Northern 
Liberties; among rubbish in the streets of Camden, and by 
Kaighn’s point, forming large patches. Biennial. July, August. 
2. V. erect, tall; leaves lanceolate, acuminate, hasta. 
cut-serrate, sometimes cut-hastate; spikes li- 
near, paniculated, subimbricate.— Willd. 
Icon. Herm. parad. 242. 
Tall Vervain. 
A very fine species, from two to four feet high, with deep- 
blue flowers, larger and handsomer than those of No. 1. On 
the banks of all our waters, on the margins of ditches, and in 
wet meadows, very abundant; more particularly in Jersey. 
Perennial. July. 
Leaves oblong-lanceolate, deeply-serrated, acute $ 2 odiongifoiia. 
spikes filiform, paniculate ; flowers smaller, pale 
blue.—.Vuit. 
Y. hastata, 4 oblongifolia, Nutt. 
Resembles No. 2, very closely, and grows with it. July. 
3. V. erect, subpubescent ; leaves ovate-acute, ser- urticifolia. 
rate, petiolate; spikes filiform, distinct, axillary 
and terminal.—Willd. and Pursh. 
Icon. Riv. monop. 57. Rob. ic. 26. (Pursh.) 
Nettle-leaved Vervain. 
About fifteen inches or two feet high, being a common weed 
in wastes, road-sides and on the borders of cultivated grounds. 
Flowers minute, white. Perennial. All summer. 
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