Spring Flora of Oklahoma 
165 
IV. VERONICA (Tourn.) L. 
Low, annual or perennial, caulescent herbs. Leaves op¬ 
posite or sometimes alternate, entire or toothed. Flowers 
axillary, racemose, or spicate. Sepals 4, slightly united at 
the base. Corolla whitish or blue, rotate, slightly irregu¬ 
lar, the lower lobe usually narrowest. Stamens 2, on either 
side of the upper corolla lobe. Ovary 2-celled. Capsule 
flat, emarginate, or 2-lobed. Seeds smooth or rough, flat¬ 
tened or concave on the sides. 
Erect; glabrous or glandular; capsule emarginate. 
1. V. pere grina. 
Diffuse; pubescent; capsule obcordate. 
2. V. arvensis. 
1. Veronica peregrima L. Purslane Speedwell. Glandular, 
pubescent, or nearly smooth, erect, 3'-12' high. The lowest leaves 
petioled or sessile, oval-oblong, toothed, the others sessile. The up¬ 
per leaves oblong-linear and entire, each with a short-pedicelled 
white flower in its axil. Flowers about 1" broad. Capsule nearly 
orbicular, obcordate, usually a little shorter than the calyx, many- 
seeded, the seeds flat. 
In moist soil and waste places. March-August. Frequent. 
2 Veroai|ica arvensis L. Corn or Wall Speedwell. Annual, 
pubescent. Simple or diffusely branched, with stems 3'-10' long. 
Lower leaves petioled, ovate, crenate. The uppermost sessile, lan¬ 
ceolate, commonly entire, each with a short, pedicelled, minute flower 
in its axil. Corolla blue or nearly white, 1" broad or less. Capsule 
broadly obovate, obcordate, 1" high. 
March-September. In fields, woods and waste places. Oklahoma 
County. 
V. CASTILLEJA Mutis. 
Annual or perennial herbs. Leaves alternate. Flowers 
red, yellow, purple, or white, in dense, leafy, bracted spikes. 
Calyx laterally flattened, 4-lobed, more deeply cleft above 
and below than on the sides. Corolla very irregular, 2-lipped. 
Upper lip arched, concave or keeled, entire, enclosing the 
4 didynamous stamens. Lower lip 3-lobed. Anther-sacs 
unequal, the outer attached by the middle, the inner by its 
apex, pendulous. Capsule ovoid or oblong. Seeds reticu¬ 
lated. 
