Yavapai and Pima cos.), June-Oct., also s. Wyo. and cen. Ut. 



7. Verbena bracteata Lag. & Rodr. Prostrate vervain. 



Stems usually several from a common base, diffusely branched, prostrate or 

 decumbent, rarely erect, coarsely hirsute; leaves 1-6 cm. long, pinnately incised 

 or 3-lobed (lateral lobes narrow and divaricate, middle lobe large, cuneate-obovate, 

 incised-dentate or cleft), narrowed into a short margined petiole, hirsute on both 

 surfaces, larger venation slightly prominent beneath; spikes terminal, sessile, 

 ascending, rather thick, conspicuously bracteose; bractlets much longer than the 

 calyx, spreading-ascending, recurved in age, coarsely hirsute, foliaceous, the lower- 

 most often incised, the upper linear-lanceolate, acute to acuminate and entire; 

 calyx 3-4 mm. long, hirsute especially on the veins, the very short lobes connivent; 

 corolla bluish to lavender or purple, the tube slightly surpassing the calyx, very 

 finely pubescent outside, the limb 2.5-3 mm. wide. V. hracteosa Michx. 



Low and newly cleared ground, in mud about lakes, ponds and along sloughs, 

 river bottoms, grassy places, waste ground and roadsides, in Tex. from the Trans- 

 Pecos and Plains Country through the Edwards Plateau e. to Newton Co., Okla. 

 {Waterfall), N. M. (widespread) and Ariz, (throughout state), Apr.-Oct.; almost 

 throughout the w. U. S. and s. Can., introd. and local eastw. 



8. Verbena Runyonii Moldenke. Rio Grande vervain. 



Stems erect, coarse, to 14 dm. tall, green, rather stout, sharply tetragonal, 

 sparsely hirsutulous with short whitish divergent hairs especially on the angles 

 and the nodes, glabrescent in age but more or less scabrellous on the angles; 

 leaves sessile, clasping, 2-6 cm. long, 8-30 mm. wide, more or less 3-parted with 

 each division pinnatifid-incised with broad acute teeth, abundantly hirsutulous 

 on both surfaces with rather short whitish hairs that are bulbous-based, the upper 

 surface scabrous on older leaves; spikes compound, the branches slender, erect, 

 14-25 cm. long, rather closely many-flowered, often with 1 to 3 pairs of much 

 reduced leaves near the base; flowers with a faint odor, very densely imbricate 

 before and during anthesis, rather uniformly separated in fruit; peduncles and 

 rachis slender, sharply tetragonal, spreading-pilose and glandular, the hairs very 

 short; bractlets linear-lanceolate, 3 mm. long, equaling the calyx, sharply attenuate, 

 rather sparsely puberulent and glandular, sparsely and irregularly ciliolate toward 

 the base; calyx 3 mm. long, glandular-pilose with short spreading hairs; corolla 

 blue, 6 mm. long, tube puberulent at apex outside, limb 4 mm. wide. 



Mostly in moist or wet ground, open fields, banks, resaca bottoms, ditches 

 and roadsides in Tex. from Hidalgo and Cameron cos. along the coast to Nueces 

 Co., Feb. -June; also N. L.; introduced in Ore. 



F. rosiflora L. L Davis differs in having rose-colored corollas; known only 

 from Cameron Co., Tex. 



3. Lantana L. Lantana 



A genus of about 160 species and 75 named varieties and forms, mostly 

 natives of tropical and subtropical America; a few also in tropical Asia and 

 Africa. 



1. Lantana horrida H.B.K. Texas lantana, hierba de cristo. calico bush. 



Shrub to 2 m. tall, much-branched; stems and branches unarmed or with many 

 stout recurved prickles, glabrous to sparsely hirsute, the younger ones often more 

 hirtellous; petioles 2-12 mm. long, pilose-hirsute; leaf blades ovate or subrotund- 

 ovate. usually 3-5 cm. long and 2-4 cm. wide, acute or obtuse, usually truncate 

 or subtruncate at base, often very shortly cuneate-attenuate into the petiole, very 

 coarsely serrate from apex almost to base with large rather irregular widely spread- 



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