Giant Wildrye

Leymus condensatus

Giant Wildrye

Anthony Valois and the National Park Service

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Poaceae
Genus:
Leymus
Species:
Leymus condensatus

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Graminoid
Height:
8-12 ft
Light Requirements:
Full Sun
Bloom Months:
apr
Bloom Colors:
Yellow

Native Range

United States: California, Canada: Alberta, British Columbia

Host Plant for Caterpillars

Apamea cuculliformis, Armyworm moth (Pseudaletia unipuncta), Benjaminiola colorada, Brown Ctenucha (Ctenucha brunnea), Mammifrontia rileyi, Mesapamea stipata

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 8.0 (neutral to slightly alkaline)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
thrives in coastal and inland scrub habitats

Germination Information

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).

Source: OpenAI GPT-4o