We've set a goal of recruiting 200 ongoing supporters to donate $15 or more each month in 2025. Please help us reach this goal and make next year's flora even better:
Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.
1 Plants annual or biennial; leaflets finely subdivided into narrow, nearly linear, segments, leaves thus 3-4-pinnate; peduncles 1-3 cm long, often shorter than rays; fruits 3-4.5 mm long, often curved, styles shorter than fruits
1 Plants perennial; leaflets coarsely toothed, sometimes slightly lobed, leaves 1-2-pinnate; peduncles 5-16 cm long, longer than rays; fruits ca. 2.5 mm long, not demonstrably curved, styles nearly as long as fruits