170 
Spring Flora of Oklahoma 
Perennials; proterogynous. 
Calyx-lobes various, the lower united, the upper 
nearly distinct. 7. P. la?iceolata. 
Calyx-lobes all essentially distinct. 
Capsules conic or oblong-conic, circumscissile 
below the middle. 8. P. Rugelii. 
Capsules ovoid, circumscissile at about the mid¬ 
dle. 9. P. major. 
1. Plantago elongata Pursh. Slender Plantain. Minutely 
pubescent, bigh. Leaves linear to filiform, entire. Capsule 
short-ovoid, 4-seeded, little exceeding the calyx and bract. 
Sandy soil. April-August. Kingfisher County. 
2. Plantago virginica L. Dwarf Plantain. Hairy or hoary- 
pubescent, 2'-16' high. Leaves oblong, varying to obovate and spat- 
ulate-lanceolate, 3-5-nerved, slightly or coarsely and sparingly toothed. 
Spikes mostly dense, long. Mature corolla slender, cylindric. 
Seeds usually 2, brown or yellowish. 
In dry soil. March-July. Frequent. 
3. Plantago occidemitalis Dec. Western Plantain. Annual or 
biennial, pubescent. Leaves 3'-8' long or more, spatulate to spat- 
ulate-lanceolate, 3-5-nerved, entire to strongly repand-lobed. Scape 
4'-8' tall. Spikes l'-6' long, densely-flowered. Flowers dioecious. 
Corolla smooth, lobes narrowly ovate, subcordate. Capsule circum¬ 
scissile below the middle. 
In dry soil. April-July. 
4. Plantago Purshii R. & S. Pursh’s Plantain. White, with 
silky wool. Leaves 1-3-nerved, varying from oblong-linear to filiform. 
Spikes slender, cylindric, very dense, 1^4'-6' long, woolly. Bracts not 
exceeding the calyx. Sepals scarious. 
On dry plains and prairies. May-August. Common. 
5. Plantago spinulosa Decne. Large-bracted Plantain. An¬ 
nual, pale green, pubescent. Leaves 2'-5' long, linear to spatulate- 
linear, callous-tipped, entire. 3-nerved. Scapes 2'-4' high, villous. 
Spikes rather interrupted, l'-3' long, villous. Bracts linear-subulate, 
3"-8" long. Flow r ers perfect. Corolla glabrous, lobes ovate, cordate. 
Capsule circumscissile at the middle. Seeds dark brown. 
On dry plains and prairies. May-October. Frequent. 
6. Plantago aristata Michx. Large-bracted Plantain. Annual 
dark green, villous or glabrate. Scapes 6'-18' high. Leaves linear, 
entire, 3-ribbed. Spikes very dense, cylindric, l'-6' long, pubescent 
but not woolly. Bracts linear, 5"-15" long. Capsule circumscissile 
at the middle. 
On dry plains and prairies. May-October. Common. 
