Stream Water-crowfoot - Ranunculus penicillatus
Favourite Photos
Species Description
Stace 4:
Ranunculus penicillatus (Dumort.) Bab. - Stream Water-crowfoot.
Subaquatic perennial, heterophyllus or with flaccid capillary leaves only; petals (5)10-15(20)mm, contiguous at anthesis, with pear-shaped nectar-pit; sepals not reflexed; receptacle hairy; immature achenes hairy. Native; rivers, usually swift-flowing; throughout Britain and Ireland except North West Scotland, Outer Isles and Central West Ireland.
Key:
- Leaves intermediate between laminar and capillary rarely present; fertile achenes regularly produced
- Capillary leaves flaccid, usually longer than adjacent stem internode, with more or less parallel segments
- Fertile achenes regularly produced from each flower; pedicels elongated in fruit
- Ultimate segments of well-developed leaves >100, often >200
Subspecies
| name | latinname | species | sightings | media | image |
|---|---|---|---|---|---|
| Stream Water-crowfoot | Ranunculus penicillatus subsp. pseudofluitans | 1 | 1 | 7 |  |