1a. Leaf-blade about as long as wide =Sundew, Drosera rotundifolia.= 1b. Leaf-blade about 2-3 times as long as wide =Sundew, Drosera longifolia.= 1c. Leaf-blade about 5-8 times as long as wide =Sundew, Drosera anglica.= 1d. Leaf-blade narrowly linear, about 10 times as long as wide =Sundew, Drosera linearis.= PODOSTEMACEAE, the River Weed Family Small submerged aquatics, growing attached to stones in running water, with dissected leaves and minute flowers. One species in Michigan =River Weed, Podostemum ceratophyllum.= CRASSULACEAE, the Orpine Family Herbs, with usually alternate leaves; the sepals, petals, and pistils each 4 or 5, or in one species the petals none, and the stamens as many or twice as many as the sepals. 1a. Leaves entire (Stonecrop) --2. 1b. Leaves toothed --3. 2a. Leaves 3-5 mm. long, very thick and fleshy (tufted plants about 1 dm. high, with yellow flowers in summer) =Stonecrop, Sedum acre.= 2b. Leaves 10-30 mm. long, flat (tufted plants 1-2 dm. high; flowers white, in spring) =Stonecrop, Sedum ternatum.= 3a. Petals present, purple (2-5 dm. high; summer) =Live-for-ever, Sedum purpureum.= 3b. Petals none (3-6 dm. high; summer) =Ditch Stonecrop, Penthorum sedoides.= SAXIFRAGACEAE, the Saxifrage Family Herbs or shrubs, with alternate or opposite leaves; petals and sepals each 5, or the petals none; stamens 5 or 10; styles or stigmas 2-4. 1a. Shrubs with lobed leaves (3-15 dm. high; flowers in late spring) --2. 1b. Herbs --12. 2a. Stems thorny --3. 2b. Stems not thorny (Currant) --8. 3a. Flowers and fruits in racemes =Swamp Currant, Ribes lacustre.= 3b. Flowers and fruit in short clusters (Gooseberry) --4. 4a. Ovary and fruit prickly and bristly =Gooseberry, Ribes cynosbati.= 4b. Ovary and fruit smooth, or sometimes a little glandular --5. 5a. Stamens equaling the ovate calyx-lobes in length, or a very little longer --6. 5b. Stamens distinctly longer than the linear calyx-lobes --7. 6a. Leaves glabrous beneath, or nearly so =Gooseberry, Ribes oxyacanthoides.= 6b. Leaves softly pubescent beneath =Gooseberry, Ribes oxyacanthoides var. calcicola.= 7a. Flowers, including the stamens, about 15 mm. long =Gooseberry, Ribes gracile.= 7b. Flowers, including the stamens, about 8 mm. long =Gooseberry, Ribes rotundifolium.= 8a. Calyx prolonged above the ovary into a tube which is longer than the sepals --9.