Bloodroot Sanguinaria canadensis Linnaeus    
Kingdom Plantae   >   Division Tracheophyta   >   Class Magnoliopsida   >   Order Papaverales   >   Family Papaveraceae   >   Genus Sanguinaria   

Status:

Bloodroot is a perennial that grows throughout eastern North America. In Maryland, it is common in the Piedmont and mountains, infrequent on the coastal plain (J. Hill/MNPS).

Description:

The plant has no above-ground stem. In early spring, the underground stem, or rhizome, which has bright orange-red juice (which explains the plant’s genus name, Sanguinaria, referring to bleeding), sends up an erect, solitary flower bud, wrapped in (usually) a single leaf that is often irregularly palmately lobed. The flower petals are very ephemeral, but the leaves persist and continue to enlarge (J. Hill/MNPS).

Where to find:

Grows in rich woods.

Relationships:

Bloodroot flowers do not produce nectar. Mining bees (Andrena spp.), gathering the pollen, serve as the plant's primary pollinators. Sweat bees (Lasioglossum spp.) also collect bloodroot pollen. “When pollinators are absent, the flowers will self-pollinate near the third day of flowering. The plant is a larval host for the southern armyworm (Spodoptera eridania) and the tufted apple bud moth (Platynota idaeusalis). Ants collect and disperse the dark brown seeds, which have a lipid-rich elaiosome. An aphid (Linosiphon sanguinarium) sucks plant juices from the underside of bloodroot leaves, but most mammalian herbivores avoid the acrid foliage” (Sanguinaria, Cornell Botanical Garden/.

There are 1,436 records in the project database.

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Bloodroot blooming in Howard Co., Maryland (4/7/2013). Photo by Kerry Wixted. (MBP list)

Bloodroot blooming in Montgomery Co., Maryland (3/19/2012). Photo by Mike Ostrowski. (MBP list)

Bloodroot in Washington Co., Maryland (4/8/2013). Photo by Jim Stasz. (MBP list)

A Bloodroot in Howard Co., Maryland (4/12/2014). Photo by Richard Orr. (MBP list)

Bloodroot blooming in Allegany Co., Maryland (4/16/2013). Photo by Kimberly Booth. (MBP list)

Bloodroot in Allegany Co., Maryland (4/5/2017). Photo by Kimberly Booth. (MBP list)

Bloodroot leaves in Washington Co., Maryland (4/25/2013). Photo by Bill Hubick. (MBP list)

Bloodroot in Harford Co., Maryland (9/18/2017). Photo by Josh Emm. (MBP list)

The leaves of Bloodroot in Charles Co., Maryland (5/17/2014). Photo by Jim Stasz. (MBP list)

A Bloodroot bloom after dropping its petals in Harford Co., Maryland (4/29/2018). Photo by Josh Emm. (MBP list)

Bloodroot blooming in Montgomery Co., Maryland (4/7/2019). Photo by Bonnie Bell. (MBP list)

Bloodroot in Washington Co., Maryland (4/14/2013). Photo by Wayne Longbottom. (MBP list)

Bloodroot in Garrett Co., Maryland (4/18/2014). Photo by Matt Tillett. (MBP list)

A post bloom Bloodroot with seedpod in Dorchester Co., Maryland (4/8/2012). Photo by Jim Brighton. (MBP list)

Bloodroot in Allegany Co., Maryland (4/15/2018). Photo by Bill Hubick. (MBP list)

Bloodroot in Howard Co., Maryland (6/11/2017). Collected and processed by Helen Lowe Metzman. Photo by USGS PWRC. (MBP list)

Bloodroot in Howard Co., Maryland (4/03/2017). Collected and processed by Helen Lowe Metzman. Photo by USGS PWRC. (MBP list)

Bloodroot in Baltimore City, Maryland (4/28/2018). (c) twinleaf, some rights reserved (CC BY-NC). Photo by twinleaf via iNaturalist. (MBP list)

Bloodroot in Kent Co., Maryland (3/31/2019). (c) Ashley M Bradford, some rights reserved (CC BY-NC). Photo by Ashley Bradford. (MBP list)

Bloodroot in Montgomery Co., Maryland (3/17/2020). (c) Stephen John Davies, some rights reserved (CC BY-NC). Photo by Stephen John Davies via iNaturalist. (MBP list)

Bloodroot in Montgomery Co., Maryland (4/3/2020). (c) johnmd, some rights reserved (CC BY-NC). Photo by johnmd via iNaturalist. (MBP list)

Bloodroot in Frederick Co., Maryland (4/6/2020). (c) Tucker O'Brien, some rights reserved (CC BY-NC). Photo by Tucker O'Brien via iNaturalist. (MBP list)

Bloodroot in Montgomery Co., Maryland (3/20/2020). (c) janeroot, some rights reserved (CC BY-NC). Photo by janeroot via iNaturalist. (MBP list)


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