thread-leaf horsebrush

Todsen, Thomas K. 1990. T and E survey of the Oscura Mountains. 4 August 1990.

• Trans Pecos false mountain-parsley
• Tetradymia filifolia
• thread-leaf horsebrush
• Todsen's pennyroyal
• HEDEOMA TODSENII
• Pseudocymopterus longiradiatus
• WSMR SBE