• Olympic: Three Parks in One

    Olympic

    National Park Washington

There are park alerts in effect.
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  • Ditch Maintenance Along Park Roads: Motorists May Encounter Delays

    Motorists may encounter delays along Sol Duc Road (9/30 - 10/1), Whiskey Bend Road (10/2), Deer Park Road (10/7-10/8), and Hurricane Ridge Road (10/9 - 10/10) due to routine cleaning of roadway drainage ditches.

  • Olympic Hot Springs Road Closed

    The Elwha Valley's Olympic Hot Springs Road is closed to public entry beyond the Altair Campground. Olympic Hot Springs is not accessible from the Elwha. The road is expected to re-open by Summer 2015.

  • Safety Advisory: Mountain Goats

    NPS has received reports of aggressive mountain goats near trails at Hurricane Ridge, Royal Basin, Seven Lakes Basin, Lake of the Angeles, & Grand Pass. Visitors are required to maintain a distance of at least 50 yards from all wildlife. More »

Herb Robert

Herb Robert

Herb Robert has five-petaled flowers and reddish stems.

NPS Exotic Plant Management Team

Geranium robertianum

This low-growing geranium species is also called “stinky Bob” for its unmistakeable and unpleasant smell.

Identification:

Herb Robert is a low-growing (up to ten inches high), herbaceous species. The stems are often dark red and covered with white hairs. Its leaves are made up of three to five leaflets that are long-stemmed and deeply dissected. Flowers are purple, pink, or white with five petals and found from early spring to fall.

How is it spreading and where?

Herb Robert was introduced from Eurasia and northern Africa. It easily spreads into undisturbed areas and is shade tolerant. It spreads by seeds that are sticky and are launched explosively.

In Olympic National Park, it has spread and established itself in several lowland areas.

 
Herb Robert

Herb Robert's dissected leaves
have a feathery look.

NPS Exotic Plant Management Team

Control in Olympic:

Herb Robert is hand-pulled and dug out for smaller populations.

For more information, see Weed Resources.

Back to Invasive Plants

Did You Know?

Mt. Olympus in winter

That Mount Olympus receives over 200 inches of precipitation each year and most of that falls as snow? At 7,980 feet, Mount Olympus is the highest peak in Olympic National Park and has the third largest glacial system in the contiguous U.S.