Geum laciniatum rough avens Rosaceae GELA; Bx, vc;

   

Geum laciniatum.Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database.USDA NRCS. 1995. Northeast wetland flora.Field office guide to plant species. Northeast National Technical Center, Chester.

Geum laciniatum.Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database.USDA NRCS. 1995. Northeast wetland flora.Field office guide to plant species. Northeast National Technical Center, Chester. (Accessed 5/2014).

Geum laciniatum is a perennial herb 0.4-1 m tall, usually with several branched stems; hairy, stipules present. 

Leaves alternate, lower leaves long-stalked, blade usually pinnately compound, leaflets coarsely toothed to irregularly lobed, winter rosette leaves often dark blue green, mottled with pale areas, stem leaves 3-parted, irregularly toothed and lobed, upper leaf segments widest above middle, bases wedge-shaped, stipules irregularly deeply toothed. 

Flowers white ca 1 cm wide, radially symmetrical, petals 0.3-0.5 cm long, sepals 0.4-1 cm long, stamens numerous, ovaries numerous, styles hooked; blooms June-July. 

Fruit dry, in rounded heads 2 cm wide of numerous achenes, styles persistent as hooks that disperse seeds by attaching to fur and clothing in fall, denuded receptacle mostly naked; fruits July-Aug. (Hough 1983). 

Wetland status: FAC+. 

Frequency in NYC: Very infrequent. 

Origin: Native. 

Habitat: Moist to wet woods, soil pH 5-7 (USDA, NRCS 2006).