Introduction to Broad-leaved Pondweed Identification 2022

This video is the first in the 2022 series of aquatic plant identification webinars - part of the BSBI's Irish Aquatic Plants Project, supported by NPWS. Expert Nick Stewart introduces Introduction to Broad-leaved Pondweed Identification. .
00:00 Introduction
03:33 Books and other resources
06:30 Features of all pondweeds
07:45 Division into Narrow-leaved and Broad-leaved pondweeds
10:21 Broad-leaved pondweeds - division by types of leaves
11:14 Broad-leaved pondweeds with opaque/ floating leaves
15:18 Potamogeton natans
15:55 Potamogeton polygonifolius
18:18 Potamogeton coloratus
22:41 Broad-leaved pondweeds with at least some translucent underwater leaves
25:20 Potamogeton gramineus
26:04 Potamogeton lucens
27:39 Potamogeton nodosus
28:28 Potamogeton perfoliatus
30:29 Potamogeton praelongus
32:12 Groenlandia densa
34:15 Potamogeton alpinus
35:54 Potamogeton polygonifolius
36:40 Potamogeton coloratus
37:15 Hybrids
39:49 Potamogeton gramineus x perfoliatus = P. x nitens
41:05 Potamogeton gramineus x lucens = P. x angustifolius
42:06 Potamogeton lucens x perfoliatus = P. x salicifolius
On the BSBI Aquatic Plant Project page (bsbi.org/aquat...) there is a Key to Broad-leaved Pondweeds that accompanies this talk: bsbi.org/downl...