Orange Hawkweed — Hieracium aurantiacum — Family: Asteraceae — Aster
Orange hawkweed is a creeping perennial of low maintenance turf, roadsides and native areas. It can be an indicator of low soil fertility or slightly acidic soils. Hawkweed spreads by stolons and rhizomes creating colonies that form patches. The leaves lay flat to the ground and overlap and will smother non-vigorous turf. All parts of hawkweed are conspicuously hairy and, like dandelion, will exude a white milky sap when broken. Bright orange flowers form in clusters at the top of the 10-20 inch hairy mostly leafless stalks.
Oter weeds in the Aster (Asteraceae) family:
Orange hawkweed is a creeping perennial of low maintenance turf, roadsides and native areas. It can be an indicator of low soil fertility or slightly acidic soils. Hawkweed spreads by stolons and rhizomes creating colonies that form patches. The leaves lay flat to the ground and overlap and will smother non-vigorous turf. All parts of hawkweed are conspicuously hairy and, like dandelion, will exude a white milky sap when broken. Bright orange flowers form in clusters at the top of the 10-20 inch hairy mostly leafless stalks.
Also Known As...
- orange paintbrush
- red daisy
- missionary weed
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Elongated |
Entire |
Spreading |
forms a rosette of overlapping leaves
spreads by stolons and rhizomes
all plant parts are conspicuously hairy
flowers form in clusters at the top of mostly leafless, hairy stalks
flowers after dandelion, usually in June
Orange and yellow hawkweed have almost identical vegetative characteristics. The main and most obvious difference is the flower color.
Links:
Hawkweed is an indication of poor or acidic soils or low fertility. Improving the growing conditions for the turf, raising the mowing height and increasing fertilization, will almost certainly minimize the ability of hawkweed to compete with the turfgrass.
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