+ All Categories
Home > Documents > Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul...

Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul...

Date post: 08-May-2020
Category:
Upload: others
View: 10 times
Download: 1 times
Share this document with a friend
23
Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski
Transcript
Page 1: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Aquatic Plant Identification

Susan KnightMichelle NaultPaul Skawinski

Page 2: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Why do we care so much about aquatic plants?

A diverse native aquatic plant community is the foundation for healthy, balanced lakes. They provide many benefits including food, shelter and nurseries for fish, wildlife and insects.

Page 3: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic
Page 4: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

• Emergent, Floating, Submersed• Floating• Submersed:

• Plants with Smooth Leaf Edges• Pondweeds

• Broad or narrow leaves• With or without floating leaves• Glands• Stipules

• Other common plants• Plants with Finely Dissected or Thread‐like leaves• Rosettes

• Reproduction• Vegetative• Sexual

Bob Korth Photo

Page 5: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

PickerelweedArrowhead

Emergent Plants with Broad or Narrow Leaves

CattailThree‐way Sedge Soft stem bulrush

Page 6: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Fragrant water lily

SpatterdockWatershield

Water smartweed

Floating‐leaf Plants:Rooted and not rooted

Small duckweed

Page 7: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Opposite LeavesGolden pertWhorled Leaves

Eurasian water‐milfoil

Whorled LeavesElodea

Submersed Plants:Opposite and 

Whorled Leaves

Page 8: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Submersed Plants with Smooth‐edged Leaves

ElodeaWild Celery

Pondweeds

Page 9: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

White‐stem pondweedP. praelongis

Fern‐leaf pondweedP. robbinsii

Alternate Leaves: Pondweeds

Page 10: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Leafy pondweedP. foliosus

Large‐leaf pondweeedP. amplifolius

PondweedsLeaves broad to narrow 

Page 11: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Variable pondweedP. gramineus

Fries pondweedP. friesii

Floating‐leaf pondweedP. natans

Floating leaves only

Submersed Leaves only

Both floating and submersed leaves

PondweedsWith and without floating leaves

Page 12: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Stiff pondweedP. strictifolius

Large‐leaf pondweedP. amplifolius

PondweedsStipules: Leafy bits near leaves and stems

Fibrous, shreddystipules

Large, stiff stipules

Page 13: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Coontail

Whorled water‐milfoil

Water marigold

Common bladderwort

Submersed Plants with 

Finely Divided Leaves

Page 14: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Submersed plants with finely‐divided leaves:Water‐milfoils

Northern water‐milfoilEurasian water‐milfoil

Page 15: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Common bladderwortUtricularia vulgaris

Page 16: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Common bladderwortUtricularia vulgaris

Bladders on leaf

Bladder with prey inside

Page 17: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Rosettes:Stiff, tough, often evergreen

Leaves come from base of plantSandy or wave‐swept shores

Low nutrient watersUnrelated to each otherMostly northern WI

Water lobelia

Dwarf water‐milfoil

Quillwort

Page 18: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Reproduction:Vegetative

Clonal growth: runners, branching,       fragments

Turions

Sexual Flowers/Fruits

Wild celery

Dwarf water‐milfoilEurasian water‐milfoil

Large‐leaf pondweed

Page 19: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Bladderworts

Pondweeds

Curly‐leaf pondweed

Reproduction:Vegetative

Clonal growth: runners, branching, fragmentsTurions: resting organs, usually to overwinter

Sexual Flowers/Fruits

Page 20: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Water marigoldPurple bladderwort

Reproduction:Vegetative

Clonal growth: runners, branching, fragmentsTurions

Sexual Flowers/Fruits

Common bladderwort

Page 21: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Pondweed:Flowers andNutlets

(Magnified)

Water‐milfoil:Flowers and

Fruits(Magnified)

Reproduction:Sexual

Flowers/Fruits

Page 22: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Nymphoides peltata, Yellow floating heart

Nitellopsis obtusaStarry stonewort

Aquatic Invasive Plants Threatening WI

Eichhornia crassipesWater hyacinth

Pistia stratiotes,Water lettuce

Page 23: Aquatic Plant Identification - UWSP...Aquatic Plant Identification Susan Knight Michelle Nault Paul Skawinski. Why do we care so much about aquatic plants? A diverse native aquatic

Freshwater SpongeNot a plantBut an animal


Recommended