Singleleaf Pinyon

Pinus monophylla

Native to:
United States

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Taxonomy

Division:
Coniferophyta | - Conifers
Family:
Pinaceae
Genus:
Pinus
Species:
Pinus monophylla
USDA Symbol:
PIMO

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Tree
Height:
1500 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
apr,may,jun

Wildlife Benefits

Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

Caterpillar Keystone:
★★★★★ Butterfly & moth species supported by this genus (NWF)

Host Plant for Caterpillars

Eucosma bobana, Rhyacionia monophylliana, Velda pinemoth (Coloradia velda)

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Deer Resistant:
Yes
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Mature trees can survive low-intensity ground fires due to thick bark. Resprouts poorly; relies on seedling recruitment post-fire.

Soil Requirements

Soil Type:
rocky, well-drained, nutrient-poor soil
pH:
6.0 - 8.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to arid, mountainous regions

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–42 days
Notes:
Seeds germinate best after cold stratification. Large seeds with high germination rates compared to other pines.

The above propagation data sourced from Claude AI

Pre-treatment: Imbibe seeds by soaking in water at room temperature for 36-48 hours, flush with clean water every 4-8 hours. Stratify seeds in wetted vermiculite at 1–5°C for 50-90 days.

Establishment: Seeds are wild collected during fall months. They are kept separated according to site, elevation and source. The protocols slightly differ in the depth of planting and the time of sowing seeds.

Source: npn.rngr.net