This is a picture of Aphyllon uniflorum at Patapsco Valley State Park in Howard County, Maryland.
This is a picture of Ranunculus abortivus at the Hollofield Area of Patapsco Valley State Park in Howard County, Maryland.
This is a picture of Hieracium venosum at the Hollofield Area of Patapsco Valley State Park in Howard County, Maryland.
This is a picture of Mitella diphylla at the Mckeldin Area of Patapsco Valley State Park in Carroll County, Maryland.
This is a picture of Asarum canadense on the North Tract of the Patuxent Research Refuge near Fort Meade, Maryland.
This is a picture of Yucca flaccida on the North Tract of the Patuxent Research Refuge near Fort Meade, Maryland.
This is a picture of Rubus phoenicolasius on the North Tract of the Patuxent Research Refuge near Fort Meade, Maryland.
Note the hairs on the phyllaries.
Red-stemmed storksbill, Washington Co., MD, 5/29/18 (Erodium cicutarium), flowering
Carolina cranesbill, Washington Co., MD, 5/29/18 (Geranium carolinianum), flowering & fruiting
This is a picture of Stellaria media at Lindale Middle School in Linthicum, Maryland.
This is a picture of Oenothera biennis at Andover Park in Linthicum, Maryland.
This is a picture of Sonchus asper at Lindale Middle School in Linthicum, Maryland.
about 5 inches tall
stalk is green not black so may be Bracken?