Appendix B. Flowering onset of Castilleja tenuiflora (with outliers included), an early-season nectar source for breeding Broad-tailed Hummingbirds (Selasphorus platycercus) at Finger Rock Canyon, Arizona, USA.

Flowering onset of Castilleja tenuiflora (with outliers included), an early-season nectar source for breeding Broad-tailed Hummingbirds (Selasphorus platycercus) at Finger Rock Canyon, Arizona, USA.