Plant Data Sheet
Species Hieraceum albiflorum, white hawkweed
Low to mid elevations.
Local occurrence (where, how common)
Most commonly found under ponderosa pine and lodgepole pine.
White hawkweed grows in dry to moist, open forests, meadows, wooded slopes, clearings, and roadsides.
Plant strategy type/successional stage (stress-tolerator, competitor, weedy/colonizer, seral, late successional)
Yellow hawkweed (H. pratense) and orange hawkweed (H. aurentiacum) look very similar to white hawkweed except for flower color, both are state listed noxious weeds and care must be taken to not propagate them.
Other common names include:
May be collected as:
Collection restrictions or guidelines
Collect seeds in August, depending on elevation and geographic location. Shake flower heads into a paper bag and ripe seeds will fall out easily. You can also simply collect whole flower heads before seeds disperse.
Seed germination (needs dormancy breaking?)
Either sow in the fall or moist stratify for 90 days at 1ēC and sow in spring.
Seed life (can be stored, short shelf-life, long shelf-life)
Recommended seed storage conditions
Propagation recommendations (plant seeds, vegetative parts, cuttings, etc.)
Soil or medium requirements (inoculum necessary?)
Installation form (form, potential for successful outcomes, cost)
Recommended planting density
Care requirements after installed (water weekly, water once etc.)
Normal rate of growth or spread; lifespan
Growth rate moderate, vegetative spread rate moderate.
Pojar, Jim and Andrew MacKinnon. 1994. Plants of the
Rose, Robin, Caryn
E.C. Chachulski, and Diane L. Haase,
Data compiled by (student name and date)