This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol3", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Phlox Hoodii Richards. App. Frank. Journ. 733. pl. 28. 1823.
Densely tufted and branched from a woody root, 2'-4' high. Leaves imbricated, erect, rigid, subulate, mucronate, somewhat woolly or ciliate, becoming glabrate, 2"-6" long; flowers solitary and sessile at the ends of the branches, about 5" long; calyx-teeth lanceolate, acuminate, rigid, longer than the tube; tube of the corolla shorter than or equalling the calyx, its lobes obovate, entire.
In dry sandy or rocky soil. North Dakota to Manitoba, Alberta, western Nebraska and Wyoming. May-July.
8: 254. 1870. Not P. longifolia Nutt.
Similar to the preceding species; leaves pubescent or glabrous, less imbricated, sometimes spreading, rigid, usually fascicled at the nodes, 4"-12" long. Flowers solitary and sessile or short-pedicelled at the ends of the branches, 5"-8" long; calyx-teeth narrowly lanceolate, acuminate, about equalling the tube; tube of the purple or white corolla longer than the calyx, its lobes obovate, entire.
Dry soil, Nebraska and Montana to Utah, California and British Columbia. May-July.