Ranunculus recurvatus hooked crowfoot Ranunculaceae RARE; Bx, pb, vc; Q; R, gb, eb, sv;

Ranunculus recurvatus.Jim Stasz @ USDA-NRCS PLANTS Database

Ranunculus recurvatus.© Jim Stasz @ USDA-NRCS PLANTS Database (Accessed 4/2014).

Ranunculus recurvatus is a perennial herb 20-70 cm tall, from a short, thick, corm-like rhizome, stems 1-3, sparsely hairy, flexible, few branches. 

Leaves alternate, stalked, blade broadly kidney-shaped in outline, 3-5 lobed divided to below middle, basal leaves all with stalks, uppermost leaves sometimes simple, stalkless (sessile). 

Flowers pale yellow, small, petals 5, 0.2-0.6 cm long, sepals long-hairy, strongly bent back (recurved), 0.3 to 0.7 cm long, blooming April-June. 

Ranunculus-recurvatus.fruiting-head.bwwellsassociation.files_.wordpress.com

Ranunculus recurvatus.fruiting head.bwwellsassociation.files.wordpress.com (Accessed 2/2017).

Fruit a rounded cluster of dry achenes 0.5-0.8 cm wide, each very flat, circular, about 0.2 cm, with a sharply curved beak; fruiting May-June (Hough 1983). 

Wetland status: FAC. 

Frequency in NYC Infrequent. 

Origin: Native. 

Habitat: Moist to dry woods stream margins.