Juncaceae (Rush Family)


1. Leaf blades absent...Juncus effusus (resembles a Schoenoplectus, the spikelets borne apparently laterally on the culm)

1. Leaf blades present...2

2. Leaf blades not septate... J. marginatus

2. Leaf blades septate...3

3. Flowering heads globose... 4

3. Flowering heads irregularly shaped, lobed and lumpy...J. scirpoides

4. Flowering heads usually > 20 in number; leaf blades flattened at the base...J. polycephalus (a generally more northern species rare in our area)

4. Flowering heads usually < 20; leaf blades terete at the base...J. megacephalus