A globally vulnerable (G3) species. The seeds of Phacelia covillei germinate in the fall and a rosette of leaves is formed that persists until Spring, when growth resumes. The plant then flowers and, in plants that were studied in the Potomac River Gorge area of Maryland and Virginia, senescence occurred in April through early June (Barrows, et al., 2012).
Grows in rich woods and alluvium (Fernald, 1950).
Barrows et al. (2012) found that no nectar was produced by the plants they studied in the Potomac River Gorge, and insects only infrequently visited the flowers. The plants were still able to set seed, though, via self-pollination, and hand pollinating experiments indicated that the plants could be manipulated to cross pollinate with other individuals of their species. The few insects that visited the flowers--bees and syrphid flies--appeared to be seeking nectar and did not stay long when they found none. No insects were observed collecting or eating pollen, either.
There are 46 records in the project database.
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