|Photo by Pete Dunkelberg, Atlas of Florida Vascular Plants|
|Division:||Magnoliophyta - Flowering plants|
|Class:||Magnoliopsida – Dicotyledons|
| Polanisia tenuifolia|
Torr. & A. Gray
|Natural range of Polanisia tenuifolia from USDA NRCS Plants Database.|
Common names: Slenderleaf clammyweed, Pineland catchfly
Synonym: Aldenella tenuifolia (Torrey & A. Gray) Greene
A description of Polanisia tenuifolia is provided in The Flora of North America.
It is a regional endemic found in the Florida panhandle to southeast Mississippi.
Habitats of P. tenuifolia include longleaf pine/scrub oak ridges, sandhills, and dry pinelands.   Associated species include Balduina angustifolia, Licania michauxii, Conradina canescens, Opuntia humifusa, O. pusilla, Froelichia floridana, Cypersus retrosus, Stipulicida setacea, Polygonella gracilis, Diodia teres, Triplasis americana,and Heterotheca subaxillaris (UF Herbarium).
P. tenuifolia has been observed flowering in June and July.
This species has vertically dangling pods called siliques, which open gradually dispenses seeds.
The following Hymenoptera families and species were observed visiting flowers of Polanisia tenuifolia at Archbold Biological Station: 
Halictidae: Augochloropsis metallica, Lasioglossum nymphalis
Megachilidae: Dolichostelis louisae, Megachile brevis pseudobrevis
Sphecidae: Cerceris blakei, Ectemnius rufipes ais, Tachysphex similis
Vespidae: Leptochilus krombeini, Microdynerus monolobus, Stenodynerus histrionalis rufustus
Use by animals
It produces glandular hairs which are believed to deter insect feeding and creeping.
Conservation and management
Loss of habitat of dunes to vacation homes and resorts is threatening this species.
Cultivation and restoration
References and notes
- []Encyclopedia of Life. Accessed: February 21, 2016
- Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: October 2015. Collectors: Angus Gholson Jr., Robert K. Godfrey. States and Counties: Florida: Liberty, Putnam. Compiled by Tall Timbers Research Station and Land Conservancy.
- Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. www.gilnelson.com/PanFlora/ Accessed: 12 DEC 2016
- []Treasure Coast Natives. Accessed: February 21, 2016
- Deyrup, M.A. and N.D. 2015. Database of observations of Hymenoptera visitations to flowers of plants on Archbold Biological Station, Florida, USA.