Coville's Phacelia Phacelia covillei S. Watson ex A. GrayG3 (Globally rare/local)  -  Threatened (MD)  -  S2 (State rare)    Synonyms: Buttercup Scorpionweed.
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Lamiales   >   Family Boraginaceae   >   Genus Phacelia   

Status:

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).

Where to find:

Grows in rich woods and alluvium (Fernald, 1950).

Relationships:

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 35 records in the project database.

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Coville's Phacelia in Prince George's Co., Maryland (4/27/2010). Per Kerry, "A globally vulnerable (G3) species that inhabits floodplain habitats. Sadly, invasive species also like those areas." Photo by Kerry Wixted. (MBP list)

Coville's Phacelia blooming in Montgomery Co., Maryland (4/23/2013). Photo by Fritz Flohr Reynolds. (MBP list)

Coville's Phacelia blooming in Montgomery Co., Maryland (4/10/2017). Photo by Elizabeth Miller. (MBP list)

Coville's Phacelia in Montgomery Co., Maryland (4/10/2017), with pencil for scale Photo by Elizabeth Miller. (MBP list)

A patch of Coville's Phacelia blooming in Montgomery Co., Maryland (4/10/2017). Photo by Elizabeth Miller. (MBP list)

Coville's Phacelia in Prince George's Co., Maryland (5/1/2013). Photo by Jim Stasz. (MBP list)

Coville's Phacelia blooming in Prince George's Co., Maryland (4/20/2019). Photo by Bill Hubick. (MBP list)

Coville's Phacelia in Prince George's Co., Maryland (4/24/2021). (c) Matthew Moskwik, some rights reserved (CC BY-NC). Photo by Matthew Moskwik via iNaturalist. (MBP list)

Coville's Phacelia in Prince George's Co., Maryland (5/4/2015). Photo by Jim Wilkinson. (MBP list)


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