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,... 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... Field Guide to Wildflowers of North America by David Brandenburg Cincinnati Zoo and Botanical Garden... ラティビダ(Ratibida) Cultural Practices: Cut dormant plants to the ground in winter. Blooming Habits: The Mexican hat... Ratibida (Ratibida columnifera) Navigation zurück Home Recherchen Übersicht Ordner zurück Impressum D atenblatt für... A cauline leaf in Las Cruces, 9/5/05. Go back to: SW Plants The main index 27.07.2008 copyright © by Jacek Soboń Ratibida (Ratibida columnifera) Old receptacles that have lost most of their achenes, in Las Cruces, 9/5/05.