Gary Fewless
Key to Equisetum
| 8.Teeth of stem
sheaths obvious, sharp-pointed and persistent; plants usually in standing
water or very wet conditions; sheaths lacking black bands. |
Equisetum fluviatile |
| 8. Teeth of stem
sheaths deciduous, leaving only truncated bases; plants usually in
moist to dry soil; most common species with conspicuous black
bands at base of sheaths. |
9 |
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