Bidens leptocephala

An unnecessarily small-flowered plant with achenes that will stick to your socks.

Plant habit along the Pine Tree Trail at Aguirre Spring, 9/17/05.



The adherent achenes; note retrorse scabrosity of the pappal awns. At Aguirre Spring, 9/17/05.



Pseudanthium at Aguirre Spring, 9/17/05.



Lower cauline leaf at Aguirre Spring, 9/17/05.

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