Ranunculus flammula L.

Lvs entire or slightly toothed; pet obovate, mostly 3–7 mm, about twice as long as the sep; achenes 1.3–1.7 mm, the erect or ascending beak 0.2–0.5 mm. 2n=32. Sandy or muddy shores; circumboreal, s. to Mass., Pa., Mich., Minn., and the western cordillera. July–Sept. Our commonest phase is the circumboreal var. filiformis (Michx.) DC., slender, prostrate, and creeping, 1–5 dm long, sending up at each node a few lvs and a naked or few-lvd, 1-fld stem 3–15 cm, the lvs filiform or linear, with scarcely expanded blade to 1.5 mm wide; 2n=32. (R. reptans) The very similar var. ovalis (Bigelow) L. D. Benson, with expanded blades mostly 1.5–7 mm wide, is sporadic with us but common farther west. The chiefly Eurasian var. flammula, in our range restricted to N.S., is stouter, with ascending or reclining stems 1–5 dm, sometimes rooting at the lower nodes but not creeping, branched above and with several fls, and with the lvs mostly 3–10 mm wide.

Common in wet places throughout Britain.

Can be grown by divisions or seedlings.