Vascular Plants of the Gila Wilderness
Presented in Association with the
Western New Mexico University Department
of Natural Sciences
Bidens cernua Linnaeus
(Nodding Beggarticks)
Family: Asteraceae
Status: Native
Synonyms:
Bidens glaucescens Greene
Bidens prionophylla Greene
Bidens cernua is an annual herb that has entire leaves that are sessile. The chaff has a yellow apex, and the achenes are curved, rounded at the apex and winged. The flower heads are erect when in flower and nodding when in fruit. Bidens cernua is found near permanent water.
Please click on an image for a larger file.
Bidens cernua, photo Russ Kleinman, Bill Norris & Kelly Kindscher, Quemado Lake, Aug. 11, 2009
Bidens cernua, closeup of inflorescence, photo Russ Kleinman, Bill Norris & Kelly Kindscher, Quemado Lake, Aug. 11, 2009
Bidens cernua, macro of yellow tipped chaff, photo Russ Kleinman, Bill Norris & Kelly Kindscher, Quemado Lake, Aug. 11, 2009
Bidens cernua, macro of bissected flowerhead, photo Russ Kleinman, Bill Norris & Kelly Kindscher, Quemado Lake, Aug. 11, 2009
Bidens cernua, macro of achene, photo Russ Kleinman, Bill Norris & Kelly Kindscher, Quemado Lake, Aug. 11, 2009
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