| Scientific Name: | Hieracium aurantiacum ( syn. Pilosella aurantiaca ) |
| Common Name: | orange hawkweed |
| Family Name: | Asteraceae |
| Origin: | Europe |
| Hardiness Zone: | Zone 2: (-46 to -40 °C) |
| Plant Type: | Herbaceous perennial, Invasive plant |
| Mature Size: | 0.4 - 0.7m x 0.1 - 0.3m (height x width) |
| Habit: | Spreading |
| Form: | Irregular |
| Texture: | Medium |
| Landscape Uses: | Attract butterflies |
| Exposure: | Full sun, Part sun/part shade |
| Soil or Media: | Rocky or gravelly or dry, Well-drained |
| Leaves: | Simple, Basal, Soft flexible, Pubescent, Elliptic, Oblanceolate, Spatulate, Entire, Undulate (wavy) |
| Flowers: | Cyme, Orange, Red, Jun-Jul-Aug-Sep |
| Fruit: | Achene, Brown, Sep-Oct |
| Key ID Features: | |
| All parts with milky sap and wiry pubescence; leaves basal, elliptical to lanceolate, 4-20cm long and 1-3.5cm wide; flowering stem up to 60cm long with 2-25 heads each 1-2.5cm wide, outer ray florets about 20, truncate and notched to have 5 teeth, orange-red then drying to purple; achenes 12-30 per head, each ribbed, 1.5-2mm long, and with bristly hairs. <a href ='http://linnet.geog.ubc.ca/Atlas/Atlas.aspx?sciname=Hieracium%20aurantiacum&redblue=Both&lifeform=7' target='_blank'>E-Flora BC</a> | |