Maricopa leafnose snake (Phyllorhynchus browni)
The Maricopa leafnose snake is a non-venomous snake in the family Colubridae. GBIF holds 378 licensed U.S. records of it; it reaches our listing threshold in 1 state, most of all Arizona (377).
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Phyllorhynchus browni, the saddled leafnose snake, is a species of snake of the family Colubridae. The snake is found in Arizona in the United States and Mexico.
From Wikipedia: Phyllorhynchus browni, text under CC BY-SA 4.0.
Is the Maricopa leafnose snake poisonous or venomous?
No. The Maricopa leafnose snake is non-venomous: it belongs to the family Colubridae, not to the pit vipers or coral snakes, the only U.S. land snakes with medically dangerous venom. It may bite if handled; clean the bite like any small wound.
Which states have the Maricopa leafnose snake?
All listed records come from a single state, Arizona, with 377 records.
| # | State | Records | Share of state snakes | Rank in state |
|---|---|---|---|---|
| 1 | Arizona | 377 | 1.8% | 16th of 60 |
How recent are the Maricopa leafnose snake records?
The Maricopa leafnose snake record leans on older material: only 10% of dated U.S. records come from 2014–2023, and the median record is from 1978. The oldest dated record is from 1923; the busiest year was 1978, with 38 records.
| Decade | Records | Share |
|---|---|---|
| 1920s | 1 | 0.6% |
| 1930s | 1 | 0.6% |
| 1940s | 4 | 2.4% |
| 1950s | 23 | 13.9% |
| 1960s | 20 | 12.1% |
| 1970s | 63 | 38.2% |
| 1980s | 11 | 6.7% |
| 1990s | 13 | 7.9% |
| 2000s | 13 | 7.9% |
| 2010s | 14 | 8.5% |
| 2020s | 2 | 1.2% |
Related species in the U.S.
Other members of the family Colubridae with profiles here: Western terrestrial garter snake, Common garter snake, Gopher snake, Ring-necked snake, Northern water snake and Eastern racer.
GBIF records read 2026-09-29. Listed: any license. Counted: CC0/CC BY only. How we count.