July 23, 2021 · 8:16 PM
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Passiflora lutea, the yellow passionflower

Yellow passionflower is often good for butterfly gardens, as it is a host for Gulf fritillaries, julia butterflies (Dryas julia), and zebra longwings (Heliconius charitonius). It is also the only pollen source used by an unusual specialist bee, Anthemurgus passiflorae, which is the sole member of its genus; this rare bee is unusual in that despite its obligate relationship with the plant (oligolecty), it rarely pollinates it.

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