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Wildflowers of Southern Arizona
Southwestern Cosmos.
Cosmos parviflorus
Aster (Asteraceae) family.
Plants 30-90 cm, glabrous or sparsely pubescent. Leaves: petioles ca. 0.5 cm; blades 2.5-6.5 cm, ultimate lobes to 1 mm wide, margins usually spinulose-ciliate, apices acute to obtuse. Peduncles 10-30 cm. Calyculi of spreading to reflexed, linear-oblong to narrowly lanceolate bractlets 6-9 mm, apices acute. Involucres (3-)5-10(-15) mm diam. Phyllaries erect, oblong, 5-8 mm, apices acute. Ray corollas white to rose-pink or violet, laminae cuneate-obovate, 5-9 mm, apices dentate. Disc corollas 4-5 mm. Cypselae 9-16 mm, setulose; pappi of 2-4 erect awns 2-3 mm.
Santa Catalina Mountains
Top of Ski Valley
Location: On Aspen Trail just south of top of Ski Valley.
Elevation: 9030 ft.
GPS: 32.44105, -110.77908
8/19/15
See SEINet Pictures and Description
See FireFly Forest Pictures and Description