Alaposan megnagyítva látszik, hogy ez két különbözö faj. Teljesen más a levelük.
Nem sok van, talán ki tudom nyomozni: "The mountains of Costa Rica and western Panama constitute a natural floristic region that is inhabited by six species of Castilleja.Castilleja talamancensis, C. lentii andC. tayloriorum are described as new. The remaining three areC. arvensis,C. irasuensis andC. quirosii. All butC. arvensis are endemic to the area. The six species are keyed, described, illustrated, mapped and documented with literature and specimen citations."