Spring Flora of Oklahoma 
53 
upper sessile, their margins often undulate. Flowers yellow. Pod 
globose, glabrous, 2" in diameter. Seeds several in each cell. 
Prairies. March-May. 
3. Lesquerella ovalifolia Rydb. Oval-leaved Bladder-pod. Per¬ 
ennial from a tufted caudex, pale, densely stellate-canescent. Basal 
leaves tufted, broadly oval to obovate, sometimes nearly orbicular, 
entire, obtuse or sub-acute, narrowed into rather long petioles. Stem- 
leaves distant, sessile, or the lowest short-petioled, linear-oblance- 
olate or narrowly-spatulate. Pods very short-stipitate, sub-globose, 
obtuse, glabrous. 
In dry soil. April-June. Arbuckle and Wichita Mountains. 
III. CAMELINA Grants. 
Erect, anual herbs, with entire, toothed or pinnatifid 
leaves, and small, yellowish flowers. Silicles obovoid or 
pear-shaped, slightiy flattened. Valves convex, 1 nerved. 
Seeds several or numerous in each cell. Stigma entire. 
Style slender. 
1. Chmelina microcarpa Andrz. Small-fruited False-flax. 
Stem pubescent, simple or with few elongated branches. Leaves 
lanceolate, sessile, auricled, or the lower narrowed at the base. 
Fruiting racemes much elongated. Pods flattened 2"-3" long, strong¬ 
ly margined. 
In waste places. May-July. Oklahoma and Cleveland counties. 
IV. BURSA (Siegsb.) Weber. 
Annual or winter annual herbs, pubescent with forked 
hairs. Pod obcordate-triangular, flattened contrary to the 
partition. The turgid valves 1-nerved. Seeds several, 
shorter than the spreading pedicels. Petals small, white. 
1. Bursa Bursa-pastoris (L.) Britton. Shepherd’s-purse. Root 
long and straight. Stem branching above, downy below, smooth 
above. Lower leaves forming a rosette at the base of the stem, 
irregularly lobed or pinnately cut. Stem leaves lanceolate, clasping, 
toothed or entire. Sepals downy, about one-half as long as the 
petals. Pod triangular, notched, or cordate at the apex. 
In fields and waste places. Very common. January-December. 
V. RADICULA Hill. 
Herbs, with simple or pinnate-lobed dissected or entire 
leaves, and small, yellow flowers. Sepals spreading. Sta* 
