From the Lady Slipper Archives: The Curious Case of the Disappearing Asters . . .

The Lady Slipper newsletter, and now blog, of the Kentucky Native Plant Society has been published since the Society’s founding in 1986. We occasionally feature an article from a past issue. In this article from 2004, Alan Weakley, looks at the taxonomic changes in the 1990s that moved American asters out of the Eurasian genus Aster into several American genera . This article ran in Vol. 19, No. 3. If you would like to see these and other past issues, visit the Lady Slipper Archives, where all issues from Vol. 1, February 1986 to Vol. 39, 2024, can be found.

The Curious Case of the Disappearing Asters . . .

by Alan Weakley

Reprinted with permission of the author from the North Carolina Botanical Garden Newsletter 32(2). March-April 2004.

Would an aster by any other name look as showy?

One dark and stormy night in 1994 I was awakened from a deep sleep by a loud thump. Creeping carefully down the stairs, I discovered to my astonishment that a large bouquet of Aster on the dining table had disappeared! In its place was a cornucopia of composites, including Symphyotrichum, lonactis, Eurybia, Sericocarpus, Doellingeria, Ampelaster, and Oclemena! Once again, a plant taxonomist had struck in dark of night, taken a simple two- syllable genus with the same English common name, and replaced it with a handful of four- and five-syllable Latin tongue-twisters. Whatever can we do about such things?

The classification of living things is based on the principle that each taxonomic unit (for instance the Composite or Aster Family, the genus Aster, or a species) groups together things that are most closely related to one another, and that the group should not also contain things which are disparate, unrelated, or more closely related to another group.

The concept of the genus Aster has had a long history of controversy and confusion. Asa Gray, the most influential nineteenth-century North American botanist, struggled with Aster at all levels, from its circumscription (what to include in it), to the taxonomy of the component species. Late in his life, he wrote:

“I am half dead with Aster. I got on very fairly until I got to the thick of the genus, around what I call the Dumosi and Salicifolia. Here I work and work, but make no headway at all. I can’t tell what are species and [sic] how to define any of them …. I was never so boggled …If you hear of my breaking down utterly, and being sent to an asylum, you may lay it to Aster, which is a slow and fatal poison.”

Continue reading From the Lady Slipper Archives: The Curious Case of the Disappearing Asters . . .

KNPS Field Trip to Mogan Ridge, Indiana

By Alan Abbott, KNPS Field Trip Coordinator

KNPS member Tyson Gregory with a species of ash (Fraxinus)

On Sunday, September 7th, KNPS member Alan Abbott led a hike on Mogan Ridge in Perry County, Indiana. Approximately 10 people, including members of both Kentucky Native Plant Society and Indiana Native Plant Society, walked the trail for over 3 hours.

The mixture of more northern and southern plants meant that everyone got to see something new. Those from Indiana were excited to see some Sourwood trees (Oxydendrum arboreum) at the northwestern edge of their range. Carolina Buckthorn (Frangula caroliniana) was also a big hit. It is widely-distributed In Kentucky, but rare in Indiana.

Silver plumegrass (Erianthus alopecuroides)

Kentucky participants were excited to see Big Tooth Aspen (Populus grandidentata), which is infrequent in Kentucky.

Other plants seen include Anglepod (Gonolobus suberosus), American Bluehearts (Buchnera americana), Silver Plumegrass (Erianthus alopecuroides), Clasping Aster (Symphyotrichum patens), Blue Waxweed (Cuphea viscosissima), and Prairie Tea (Croton monanthogynus).

KNPS Field Trip to Crooked Creek SNP

Devin Rodgers, Botantist at the Office of Kentucky Nature Preserves

On Saturday, September 6, 2025, Devin Rodgers, KNPS member and Botanist for the Office of Kentucky Nature Preserves, led a hike of seven KNPS members at Crooked Creek State Nature Preserve, in Lewis County, KY. Though many of the asters (Symphyotrichum spp.) were not yet blooming, the hike’s focus on the sunflower family, Asteraceae, successfully highlighted flowering plants of many genera such as snakeroot (Ageratina), Mistflower (Conoclinium), thoroughworts (Eupatorium), Joe-pye-weed (Eutrochium), Blazingstars (Liatris), rosinweeds (Silphium), Goldenrod (Solidago), and Ironweed (Vernonia).

Expanses of prairie dock (Silphium terebinthinaceum) are found at Crooked Creek.

The rare grassland type present at the preserve, the Bluegrass Cat Prairie, is a unique assemblage of plants unlike any other calcareous grassland in Kentucky, though there are a few similarities to scattered grasslands over dolomite in the outer Bluegrass extending south and west towards Louisville. These prairies contained some of the most interesting and spectacular blooms with a sea of prairie dock (Silphium terebinthinaceum), stiff goldenrod (Solidago rigida), and three different blazingstars (Liatris cylindracea, Liatris aspera, Liatris spicata), of which two were blooming. Additional uncommon species flowering in the prairies included Southern obedient-plant (Physostegia virginiana ssp. praemorsa), Gattinger’s agalinis (Agalinis gattingeri), and Earleaf Foxglove (Agalinis auriculata).

Stiff goldenrod (Solidago rigida)
Cylindrical blazing star (Liatris cylindracea)
Southern obedient-plant (Physostegia virginiana ssp. praemorsa)
Earleaf foxglove (Agalinis auriculata)

KNPS Field Trip to Mogan Ridge West – Sept 7, 2025

KNPS Field Trip to Mogan Ridge West – Sept 7, 2025

Date of trip: 09/07/2025
Time: 10AM Central Time
Location: Mogan Ridge West, Porter Co., Indiana
Difficulty of hike: Moderate – Expect about a 2.5-hour, out-and-back hike. There are some steep hills on the trail, so expect some physical exertion.

Join Kentucky Native Plant Society Field Trips Chair Alan Abbott for a hike along Mogan Ridge West in Indiana’s Hoosier National Forest on Sunday, September 7th. This trail is close to the Ohio River and approximately an hour from either Owensboro or Louisville.

The hike is meant to introduce participants to the plants of Mogan Ridge, as well as other botanical adventures available in Southern Indiana’s public lands.

Mogan Ridge West follows a gravel road through an upland, Oak-Hickory forest.  Late-blooming herbaceous plants typical of this part of Hoosier National Forest include Stiff Goldenrod (Solidago erecta), Rough Blazing Star (Liatris aspera), and Late Purple Aster (Symphyotrichum patens). Woody plants include Scarlet Oak (Quercus coccinea), Mockernut Hickory (Carya tomentosa), and Post Oak (Quercus stellata). The trail has one of Indiana’s few populations of Sourwood (Oxydendrum arboretum).

Time permitting, the group will travel a short distance to see a small population of American Bluehearts (Buchnera americana).

Mogan Ridge West is a well-maintained forest road. However, there are some steep hills on the trail, so expect some physical exertion.  

The group will meet at 10AM Central Time at the Mogan Ridge West parking area. Expect about a 2.5-hour, out-and-back hike. Bring water and tick-protection. 

To register for this field trip, fill out and submit the form below.


2025 KNPS Fall Meeting at Natural Bridge SRP, September 6th, 10am EST

White haired goldenrod (Solidago albopilosa)
photo by Dr. Thomas G. Barnes

Mark your calendars and plan to meet up with other KNPS members and friends as we head to the Natural Bridge SRP for the Society’s 2025 Fall Meeting, on Sept 6th. We will meet in the Woodland Center, which is a short walk from the Hemlock Lodge where you can park. If you want to learn more about KNPS, meet other Kentucky native plant enthusiasts, and learn more about the native plants of Kentucky, then the KNPS Fall Meeting is for you!

We are still finalizing details of the Fall Meeting, but here is the schedule for the day (all times are Eastern Daylight Time).

Continue reading 2025 KNPS Fall Meeting at Natural Bridge SRP, September 6th, 10am EST

KNPS Field Trip to Mammoth Cave NP – Sept 6, 2025

Field Trip is Full, No More Registrations will be Accepted

Date of trip: 09/06/2025
Time: 9:00 AM to 12:00 PM (approx.) Central Time
Location: Mammoth Cave NP, Hart County
Difficulty of hike: Easy – The trail is essentially level, with a few gentle slopes. The total hike will last two to three hours.

Join KNPS members Steve Kistler and Carol Friedman for a hike in Mammoth Cave NP. Participants will hike into two distinct prairie restoration areas, both north and south of the parking spot. The two areas have been burned on different schedules, resulting in differences in habitat. There are also some open woods, providing even more variety. Expect to see some grassland plants like Rough Blazing Star (Liatris aspera) and Stiff Leaved Goldenrod (Solidago rigida). Steve and Carol will help ID the plants, insects and birds the group encounters.

Carol Friedman is a nature lover and gardener from Hart County. Steve Kistler, also from Hart County, is a retired teacher and seasonal guide at Mammoth Cave. He’s the creator of the website Hart County Flora.

To register for this field trip, fill out and submit the form below.


KNPS Field Trip to Crooked Creek SNP – Sept 6, 2025

Date of trip: 09/06/2025
Time: 9:30 AM – 1:00 PM Eastern Time
Location: Crooked Creek SNP, Lewis Co., KY
Difficulty of hike: Easy – The hike will cover a distance of approximately 1.5 miles on an established trail. The terrain is mostly flat with some small inclines or declines, but attendees should be prepared for hiking trail conditions like navigating occasional spots with rocks, mud, or woody debris. We will leave the trail at one or two spots to view some of the grasslands.

Join KNPS member and OKNP biologist, Devin Rodgers for a hike to Crooked Creek SNP in Lewis Co. The hike will highlight the Bluegrass Cat Prairie, a unique type of grassland that features some of the highest concentrations of rare plants in Kentucky. The ecology and rare plants of this grassland will be discussed along with a focus on morphology and identification of the sunflower family, Asteraceae.

Prairie species such as big bluestem (Andropogon gerardii), little bluestem (Schizachyrium scoparium), and prairie dock (Silphium terebinthinaceum var. luciae-brauniae) occur in the barrens areas. This site also protects five rare plant species: starry false Solomon’s seal (Maianthemum stellatum), white rattlesnake root (Prenanthes alba), slender blazing-star (Liatris cylindracea), earleaf foxglove (Agalinis auriculata) and scarlet Indian paintbrush (Castilleja coccinea).​

There are no restrooms or facilities at the preserve. There will be some shaded portions of the hike, but attendees should be prepared for being in open areas with full sun. Short water and shade breaks will be taken. Make sure to bring plenty of water and tick protection.

Because of limited parking at Crooked Creek SNP, the group will meet in Maysville and carpool to the preserve. Meet up coordinates will be sent to participants in a separate email.

Due to the sensitivity of the site, registration will be limited to 12 participants.

If you have any questions, send an email to FieldTrips@knps.org.

To register for this field trip, fill out and submit the form below.