8 April 2017 – Spring Wildflower Walk

8 April 2017 Botany Bill Journal

Little Patuxent River from the River Trail

Today, the Little Patuxent River Trail located on the North Tract of the Patuxent Research Refuge was the scene for a spring wildflower walk sponsored by the Refuge.

Virginia Bluebells among Lesser Celandine

We identified a total of 32 species of plants and one species of lichen. (See list below). The bluebells put on an especially nice display. We did notice that the invasive Lesser Celandine took over more of the area compared to last year.

Looking at a Spicebush.

After the walk along the River Trail, we drove down to the Chickasaw Plum grove. In addition to the Chickasaw Plum we saw some Devil’s Tongue Cactus (Opuntia humifusa.)

A good time was had by all.


Flowers/Plants identified.

  1. Acer negundo L. – Boxelder
  2. Arabidopsis thaliana (L.) Heynh. – Mouseear Cress
  3. Cardamine hirsuta L. – Hairy Bittercress
  4. Carpinus caroliniana Walter – American Hornbeam
  5. Cerastium sp. – Mouse-ear Chickweed
  6. Cercis canadensis L. – Eastern Redbud
  7. Claytonia virginica L. – Virginia Spring Beauty
  8. Corydalis flavula (Raf.) DC. – Yellow Fumewort
  9. Dicentra cucullaria (L.) Bernh. – Dutchman’s Breeches
  10. Draba verna L. – Whitlow Grass
  11. Erythronium americanum Ker Gawl. – Dogtooth Violet
  12. Ficaria verna Huds. – Lesser Celandine
  13. Floerkea proserpinacoides Willd. – False Mermaidweed
  14. Glechoma hederacea L. – Ground Ivy
  15. Hydrophyllum virginianum L. – Eastern Waterleaf
  16. Lamium purpureum L. – Purple Deadnettle
  17. Lindera benzoin (L.) Blume – Northern Spicebush
  18. Mertensia virginica (L.) Pers. ex Link – Virginia Bluebells
  19. Micranthes virginiensis (Michaux) Small – Early Saxifrage
  20. Opuntia humifusa (Raf.) Raf. – Devil’s Tongue
  21. Packera aurea (L.) Á. Löve & D. Löve – Golden Ragweed
  22. Poa annua L. – Annual Blue Grass
  23. Polystichum acrostichoides (Michx.) Schott – Christmas Fern
  24. Prunus angustifolia Marshall – Chickasaw Plum
  25. Prunus cf. americana Marshall – American Plum
  26. Symplocarpus foetidus (L.) Salisb. ex W.P.C. Barton – Skunk Cabbage
  27. Taraxacum officinale F.H. Wigg. – Common Dandelion
  28. Veronica hederifolia L. – Ivyleaf Speedwell
  29. Veronica persica Poir. – Birdeye Speedwell
  30. Viola bicolor Pursh – American Field Pansy
  31. Viola eriocarpon (Nutt.) Schwein. – Downy Yellow Violet
  32. Viola sororia Willd. – Common Blue Violet

Cladonia cristatella Tuck. – British Soldiers

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