head with disk flowers just beginning to open--do you see why the common name of this plant is... Family - Asteraceae Stems - To -2m tall, multiple from base, herbaceous, erect, branching above,... Involucre (rays removed). Ray flowers - Sterile. Typically 6, yellow or with brownish-purple and... individuals of Ratibida columnifera can have one of two basic ray corolla colors: brown... Family - Asteraceae Stems - To -1m tall, erect, multiple from base, simple to branching above,... 27.07.2008 copyright © by Jacek Soboń Inflorescence - Single flower head terminating stem. Peduncle naked, to +20cm long, antrorse... Inflorescence - Single flower heads from long(+/-20cm) naked peduncles. Involucre - Phyllaries... Flowering - May - September. Habitat - Prairies, thickets, woodland edges, streambanks, railroads.... Show Larger Picture Use the back key of your browser to come back to the previous display. © 1998-2001 Philippe Faucon,... Involucre. Ray flowers - Flowers typically 10 in number. Ligule yellow, +/-6cm long, to 1.5cm broad,... Disk close-up. Flowering - June - September. Habitat - Prairies, waste ground, disturbed sites,... another view of the head --in this inflorescence, none of the disk flowers have opened yet Disk flowers - Fertile. Corolla 5-lobed, purple. Tube to 1.8mm long, glabrous. Achenes white in... Leaves - Alternate, deeply pinnatifid, petiolate below, sessile above, to +10cm long, +5cm broad,... Leaves - Alternate, sessile, pinnatifid to pinnately divided, +/-18cm long, scabrous, hirsute on... Disk flowers - Fertile. Corolla 5-lobed, purple. Tube to 1.8mm long, glabrous. Achenes white in... ...or yellow! They belong to the same species, despite the difference. Inflorescence - Single flower head terminating stem. Peduncle naked, to +20cm long, antrorse... Cultural Practices: Cut dormant plants to the ground in winter. Blooming Habits: The Mexican hat... A cauline leaf in Las Cruces, 9/5/05. Go back to: SW Plants The main index Old receptacles that have lost most of their achenes, in Las Cruces, 9/5/05. A pseudanthium at Enchanted Rock in Central Texas, 8/13/05. Prairie coneflower blooms in mid- to late summer Photo: © Y. Cunnington In nature, grasses dominate... Blooms profusely all summer with large yellow flowers that have drooping petals. The flowers... Species Links Alabama Plant Atlas Biota of North America Program (BONAP) Bryophyte Herbaria EDD MapS... A pseudanthium in Las Cruces near Las Alturas Drive, 9/5/05.