180 COMMON CANADIAN WILD PLANTS. 



2. Accrn'trs. Corolla reflexed or merely spreading. Crown as In No. 



1, hut no incurved horn. Leaves mostly alternate. 



1. ASCIE'I'IAS, L. AIlI.KWEED. 

 • Flowers greenish, yelloiiiisli or white, or merely purplish-tinged. 



1. A. Cornu'ti, Decaisne. (Common Milkweed.) Stem 

 tall and stout. Leaves oval or oblong, short-petioled, pale 

 green, 4-8 inches long. Mowers dull greeniah-purjih. Pods 

 ovate, soft-spiny, woolly, — Mostly in dry soil ; very common. 



2. A. specio'sa, Torr. Finely white-woolly or becoming 

 glabrous, the many-flowered umbel and calyx densely woolly. 

 Leaves oval to oblong, slightly cordate. Corolla-lobes pur- 

 plish. Hoods with a long lanceolate appendage at the sum- 

 mit.— N.W. 



3. A. phytolaeeoi'des, Pursh. (Poke Milkweed.) Stem 

 tall and smooth. Leaves broadly ovate, acute at both ends, 

 short-petioled. Pedicels loose and nodding, very long and 

 slender. Corolla greenish, with the hooded appendage white. 

 Pods minutely downy, hut not warty. — Moist thickets. 



4. A. ovalifo'lia, Decaisne. Low, soft^downy. Leaves 

 ovate to lance-oblong, acute, short-petioled, soft-pubescent 

 beneath. Umbels loosely 10-18-flowered. Pedicel slender. 

 Corolla-lobes greenish-white, slightly tinged with purple 

 outside .5— Hoods yellowish, with a small horn, obtuse, entire. 

 —N.W. 



5. A. quadrifo'lia, L. Stem slender, 1-2 feet high, 

 moftly leafless below, with one or two whorls of four in the 

 middle, and one or two pairs of ovate or ovate-lanceolate 

 taper-pointed leaves. Corolla lobes pale pink ; hoods white. 

 — Not common, but abundant near Toronto. 



6. A. vertieilla'ta, L., has slender stems and ftiform- 

 linear leaves with revolute margins, 3-6 in a whorl. Corolla- 

 lobes greenish-white. — S.W. Ontario', and N.W. 



* * Flowers red. 



7. A. inearna'ta, L. (Swamp M.) stem tall, leafy, 

 branching, and smooth. Leaves oblong-lanceolate, acute, 

 obscurely heart-shaped at the base. Flowers rose-purple. 



