6a. Bracts subulate, sharply awned =Pigweed, Amaranthus hybridus.= 6b. Bracts merely acuminate =Pigweed, Amaranthus paniculatus.= 7a. Flowers in leafy spikes, or the lower in separate clusters =Water Hemp, Acnida tuberculata.= 7b. Flowers in separate distinct clusters =Water Hemp, Acnida tuberculata var. subnuda.= PHYTOLACCACEAE, the Pokeweed Family Herbs with alternate entire leaves, small flowers without petals, and a many-celled ovary. One species in Michigan, 1-2 m. high, with numerous racemes of whitish flowers, in late summer, followed by dark-purple berries =Pokeweed, Phytolacca decandra.= NYCTAGINACEAE, the Four-o'Clock Family Herbs, with opposite entire leaves and flowers in small clusters surrounded by a broad open calyx-like involucre; the true calyx colored like a corolla; petals none (4-8 dm. high; flowers purple, in summer). 1a. Leaves lanceolate or narrower, sessile =Umbrella-wort, Oxybaphus hirsutus.= 1b. Leaves ovate, petioled =Umbrella-wort, Oxybaphus nyctagineus.= ILLECEBRACEAE, the Knotwort Family Herbs, with opposite entire leaves, and minute flowers without petals. (Prostrate spreading or freely branched plants, 3 dm. high or less; flowers in summer.) 1a. Stipules none; leaves slightly connate at base, subulate =Knawel, Scleranthus annuus.= 1b. Stipules present, but small; leaves elliptical or oval (Forked Chickweed) --2. 2a. Stems pubescent; internodes seldom more than 1 cm. long =Forked Chickweed, Anychia polygonoides.= 2b. Stems smooth; internodes about 2 cm. long =Forked Chickweed, Anychia canadensis.= AIZOACEAE, the Carpet-weed Family Prostrate herbs, with whorled leaves and small whitish axillary flowers without petals, in summer. One species in Michigan =Carpet-weed, Mollugo verticillata.= CARYOPHYLLACEAE, the Pink Family Herbs, with opposite or whorled entire leaves, and stems frequently swollen at the nodes. Sepals 4 or 5; petals separate, as many as the sepals, or rarely none; stamens twice as many as the petals in plants with conspicuous flowers, sometimes fewer in those with small flowers; ovary 1-celled, with the ovules on a central axis, and with 2-5 styles. 1a. Calyx spreading, of separate sepals; flowers 15 mm. wide or less; petals sometimes none --2. 1b. Calyx tubular, of united sepals; flowers in many species more than 15 mm. wide; petals always present --22. 2a. Stipules present --3. 2b. Stipules none --4. 3a. Leaves opposite; flowers pink (about 1 dm. high; summer) =Sand Spurrey, Spergularia rubra.=