Pinus flexilis James var. alpina Silba
Scientific Name: Pinus flexilis James var. alpina Silba
Synonyms: Pinus flexilis James ssp. <i>alpina</i> (Silba) Silba, Pinus flexilis James var. <i>alpina</i> Silba, Pinus flexilis James ssp. <i>callahanii</i> (Silba) Silba, Pinus flexilis James var. <i>callahanii</i> Silba
Classification: Plantae/ Tracheobionta / Spermatophyta / Coniferophyta / Pinopsida / / Pinales / Pinaceae / Pinus L./ Pinus flexilis James var. alpina Silba
| General Information | |
|---|---|
| Usda Symbol | PIFLA2 |
| Group | Gymnosperm |
| Life Cycle | Perennial |
| Growth Habits | Tree |
| Native Locations | PIFLA2 |
Plant Guide
Use a soil moisture meter to monitor the soil moisture where Pinus flexilis James var. alpina Silba is planted.
Plant Traits
Growth Requirements
| Temperature, Minimum (°F) | -43 |
|---|---|
| Adapted to Coarse Textured Soils | No |
| Adapted to Fine Textured Soils | No |
| Adapted to Medium Textured Soils | Yes |
| Anaerobic Tolerance | None |
| CaCO3 Tolerance | Medium |
| Cold Stratification Required | Yes |
| Drought Tolerance | High |
| Fertility Requirement | Low |
| Fire Tolerance | Low |
| Frost Free Days, Minimum | 90 |
| Hedge Tolerance | None |
| Moisture Use | Low |
| pH, Maximum | 6.5 |
| pH, Minimum | 5.7 |
| Planting Density per Acre, Maxim | 1200 |
| Planting Density per Acre, Minim | 430 |
| Precipitation, Maximum | 70 |
| Precipitation, Minimum | 20 |
| Root Depth, Minimum (inches) | 20 |
| Salinity Tolerance | None |
| Shade Tolerance | Intolerant |
Morphology/Physiology
| Bloat | None |
|---|---|
| Toxicity | None |
| Resprout Ability | No |
| Shape and Orientation | Erect |
| Active Growth Period | Summer |
| C:N Ratio | High |
| Coppice Potential | No |
| Fall Conspicuous | No |
| Fire Resistant | No |
| Flower Color | Green |
| Flower Conspicuous | No |
| Foliage Color | Green |
| Foliage Porosity Summer | Moderate |
| Foliage Porosity Winter | Moderate |
| Foliage Texture | Coarse |
| Fruit/Seed Conspicuous | No |
| Nitrogen Fixation | None |
| Low Growing Grass | No |
| Lifespan | Long |
| Leaf Retention | Yes |
| Known Allelopath | No |
| Height, Mature (feet) | 66.0 |
| Height at 20 Years, Maximum (fee | 25 |
| Growth Rate | Slow |
| Growth Form | Single Stem |
| Fruit/Seed Color | Brown |
Reproduction
| Vegetative Spread Rate | None |
|---|---|
| Small Grain | No |
| Seedling Vigor | Low |
| Seed Spread Rate | Slow |
| Fruit/Seed Period End | Fall |
| Seed per Pound | 4400 |
| Propagated by Tubers | No |
| Propagated by Sprigs | No |
| Propagated by Sod | No |
| Propagated by Seed | Yes |
| Propagated by Corm | No |
| Propagated by Container | Yes |
| Propagated by Bulb | No |
| Propagated by Bare Root | Yes |
| Fruit/Seed Persistence | No |
| Fruit/Seed Period Begin | Summer |
| Fruit/Seed Abundance | High |
| Commercial Availability | Contracting Only |
| Bloom Period | Summer |
| Propagated by Cuttings | No |
Suitability/Use
| Veneer Product | No |
|---|---|
| Pulpwood Product | No |
| Post Product | No |
| Palatable Human | Yes |
| Palatable Browse Animal | Low |
| Nursery Stock Product | Yes |
| Naval Store Product | No |
| Lumber Product | Yes |
| Fuelwood Product | Medium |
| Fodder Product | No |
| Christmas Tree Product | No |
| Berry/Nut/Seed Product | No |
