Apocynaceæ — Dogbane Family
In our species, perennial herbs with opposite, entire leaves and small, 5-parted, campanulate, pink flowers in corymbed cymes, and slender elongated terete seed pods.
Apocynum androsæmifolium L. Spreading Dogbane, Honeybloom.
Stems 1—3 feet high, branches broadly spreading, mostly smooth. Leaves ovate or oval, spine-tipped, smooth above, pale and usually more or less hairy beneath. 2—4 inches long. Flowers pink, open-campanulate, ⅜ of an inch broad, with 5 spreading lobes, numerous, in loose, terminal and axillary cymes; seed pods round, slender, curved, 4—6 inches long, narrowed at the apex, usually in pairs; plant with a milky juice.
Frequent on the line of the railway from Field westward through the valley of the Kicking Horse River.