Geum laciniatum Murray
Family: Rosaceae
rough avens
[Geum laciniatum var. laciniatum Murray,  more...]
Geum laciniatum image
from USDA Plants website  
Geum laciniatum image
University of Wisconsin - Madison (WIS-VP)  
Forests of oak, oak-red maple, aspen, oak-basswood, sugar maple-oak; swamps of elm-ash, tamarack, silver maple-black ash, white cedar-black ash-red maple, green ash-cottonwood, even sometimes in floodplain forests. Also found in wet prairies, fens, open grassy areas along streams and rivers, low meadows, wet fields and pastures, thickets, ditches and roadsides, marshy areas, sedge meadows, low oak savannas. In addition to the characters in the key, G. laciniatum differs from G. aleppicum in its fruiting heads being sessile (held on stipes 2–3 mm long in G. aleppicum) and in having fruiting heads that are round in outline with the fruiting styles not strongly reflexed (those of G. aleppicum appear to slightly taper near the base and the fruiting styles are reflexed on the proximal achenes). This is generally a robust plant, usually found in early successional habitats, but not necessarily poor quality or weedy ones. Rough avens is found throughout the state but is absent from most of the northern counties; it seems most common in the south and east, but collections are scattered.
- petals white, much shorter than sepals

- small bractlets present between sepals

- receptacle glabrous to sparsely hairy, beaks eglndular

- pedicel hirsute with spreading to reflexed hairs

- basal and lower cauline leaves often 5-parted