Branched Bur-reed - Sparganium erectum subsp. oocarpum
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Species Description
Widespread and scattered throughout the UK.
Stace 4:
Ssp. oocarpum (Čelak.) Domin.
Fruits pale brown, subglobose, abruptly narrowed to beak. Ireland, South & Central Britain, Channel Islands. Usually very few fruits form per head; possibly the hybrid ssp. erectum x ssp. neglectum.
Key:
- Fruits gradually rounded below beak
- Fruit subglobose, abruptly contracted to beak, 4-7mm across
Useful Links:
Online Atlas of the British and Irish Flora
Kew(as nothossp. oocarpum)