dcsimg
HermannFalkner/sokol   cc-by-nc-2.0

Oenothera pycnocarpa is a species of biennial herb in the family Onagraceae. They have a self-supporting growth form. They are associated with freshwater habitat. They have simple, broad leaves. Individuals can grow to 0.93 m.

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EOL has data for 22 attributes, including:

Known occurrences, collected specimens and observations of Oenothera pycnocarpa Atkinson & Bartlett. View this species on GBIF