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. |