Photos / Sounds

What

Algae-like Pondweed Potamogeton confervoides

Observer

nathan20

Date

September 15, 2019 09:19 AM EDT

Description

Abundant. Stipules free (see second photo)

Photos / Sounds

What

Eel-grass Pondweed Potamogeton zosteriformis

Observer

nathan20

Date

September 15, 2019 09:21 AM EDT

Photos / Sounds

What

Beck's Water-Marigold Bidens beckii

Observer

nathan20

Date

September 15, 2019 09:23 AM EDT

Photos / Sounds

What

Coontail Ceratophyllum demersum

Observer

nathan20

Date

September 15, 2019 09:27 AM EDT

Photos / Sounds

What

Water Star-Grass Heteranthera dubia

Observer

nathan20

Date

September 15, 2019 09:34 AM EDT

Photos / Sounds

What

Hooker's Bugseed Corispermum hookeri var. hookeri

Observer

nathan20

Date

September 15, 2019 10:50 AM EDT

Description

Certainly seems to be this taxon. If so, this will be the first collection of Corispermum hookeri for Michigan and the Lower 48. In mostly bare sand with Ammophila breviligulata, Cirsium pitcheri, Tanacetum bipinnatum subsp. huronensis, Salix cordata, Salix interior, and Artemisia campestris. Locally common and probably more widespread immediately to the east. Have specimens for UM herbarium.

Photos / Sounds

Square

What

Lake Huron Tansy Tanacetum bipinnatum ssp. huronense

Observer

nathan20

Date

September 15, 2019 10:51 AM EDT

Photos / Sounds

What

Sand Dune Willow Salix cordata

Observer

nathan20

Date

September 15, 2019 10:51 AM EDT

Photos / Sounds

What

Pitcher's Thistle Cirsium pitcheri

Observer

nathan20

Date

September 15, 2019 10:56 AM EDT

Description

An exceptional number flowered this year!

Photos / Sounds

What

American Marram Grass Ammophila breviligulata

Observer

nathan20

Date

September 15, 2019 11:03 AM EDT

Photos / Sounds

What

Pringle's Coralroot Corallorhiza odontorhiza var. pringlei

Observer

nathan20

Date

September 15, 2019 12:22 PM EDT