Spring Flora of Oklahoma 
45 
Flowers subtended by involucres remote from the 
calyx or close to it. III. Anemone. 
Flowers not subtended by involucres. 
Small annual herbs; leaves basal linear; sepals 
spurred. IV. Myosurus. 
Low or tall herbs, mostly with both basal and stem 
leaves; sepals spurless. V. Ranunculus. 
Climbing vines. VI. Viorna. 
I. HYDRASTIS. Ellis. 
Erect, perennial, pubescent herbs, with palmately- 
lobed reniform leaves, and small, solitary, greenish-white 
flowers. Sepals 3, petaloid. Petals none. Stamens nu¬ 
merous. Carpels many, each bearing 2 ovules near the 
middle, and in fruit forming a head of 1-2-seeded crim¬ 
son berries, somewhat resembling a raspberry. Stigma 
fiat. 
1. Hydrastis canadensis L. Orange-root. Golden Seal. Per¬ 
ennial from a thick, yellow rootstock. Basal leaf long-petioled, 5'-8' 
broad, palmately 5-9-lobed, sharply and unequally serrate. Cauline 
leaves 2, borne at the summit of the stem, the upper one subtending 
the green ish-white flower. Head of fruit ovoid, blunt, the fleshy 
carpels tipped with a short curved beak. 
In woods. April. 
II. DELPHINIUM L. 
Annual or perennial herbs. Stem erect, simple or 
branched. Leaves alternate, petioled, palmately divided. 
Flowers in terminal racemes or panicles, showy. Sepals 
5, colored, irregular, the upper one prolonged into a spur. 
Petals 4, unequal, the 2 upper ones with long spurs which 
are enclosed in the spur of the upper sepal, the other 2 
short-stalked. Pistils 1-5; ovaries many-seeded. 
Flowers bright blue; bractlets close to the calyx. 
1. D. carolinianum. 
Flowers bluish-white; bractlets distant from the calyx, 
2. D. virescens. 
