AMARANTHACEAE, the amaranth and quinoa family.
Dysphania graveolens, quite rich in betalains:

ASTERACEAE, the sunflower family.
Anaphalis margaritacea, common in subalpine openings:

Cirsium scopulorum, of the southern Rocky Mountains:

Lygodesmia grandiflora, a gorgeous cichorioid of the greater Four Corners:

BRASSICACEAE, the mustard family.
Stanleya pinnata (Brassiaceae), of drylands of the western U.S.A.:

CACTACEAE, the cactus family.
Pediocactus simpsonii, of dry slopes and openings of the greater Rocky Mountains of U.S.A.:

CRASSULACEAE
Rhodiola rhodantha, the 5 separate carpels developed into follicles:

HYDRANGEACEAE, the hydrangea family.
Fendlera rupicola, an attractive shrub of pinyon-junipers lands and canyons:

ONAGRACEAE, the evening primose family.
Oenothera harringtonii, narrowly endemic to southeastern Colorado:

OROBANCHACEAE
Pedicularis groenlandica, a common lousewort of the southern Rockies:

PAPAVERACEAE
Papaver kluanense, an endearing alpine poppy of the Rocky Mountains:

PLANTAGINACEAE, the plaintain family.
Penstemon buckleyi, endemic to the grasslands of south-central North America:

POLEMONIACEAE
Phlox condensata, of the broader southwest of North America.

PRIMULACEAE, the primrose family.
Primula parryi, presenting one of the showiest flowers for its altitude in the southern Rockies:

RANUNCULACEAE, the buttercup family.
Delphinium alpestre, an endemic alpine larkspur of the southern Rocky Mountains:

ROSACEAE, the rose family.
Dryas hookeriana, perhaps an alpine limestone lover:

RUTACEAE, the citrus family.
Ptelea trifoliata, 1 of only 2 native citruses of cool and semiarid Colorado. Note the pellucid glands/punctations:

SOLANACEAE
Quincula lobata, a monotypic genus restricted to the high plains and deserts of southwestern North America:
