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Western grasswort

Lilaeopsis occidentalis

Also called Western Lilaeopsis, Lilaeopsis Ruthiana, Mason's Lilaeopsis

Western grasswort
Photo: Gordon Leppig & Andrea J. Pickart, Public domain

Western grasswort is a small, grass-like perennial of tidal brackish and salt marshes on the Pacific coast of North America. It needs wet, saturated soil or shallow water and is rarely grown outside its natural habitat.

Family
Apiaceae (Carrot family)
Grows as
Perennial
Light
Full sun, Part shade
Water
Keep the roots constantly wet or submerged in shallow water.
Soil
Wet, muddy or sandy marsh substrate with some salinity.
Temperature
Hardy in cool temperate conditions; protect from hard freezing below -10 °C.
How easy
Hard
Native range
W. Canada to W. U.S.A., W. & S. South America, Falkland Is.
Climate
temperate

About

Lilaeopsis occidentalis is a species of flowering plant in the family Apiaceae known by the common name western grasswort. It is native to the coastline western North America from far southern Alaska to California, where it grows in brackish and salt marshes. This is a perennial herb producing a tuft of thready but stiff and erect grasslike leaves up to about 30 centimeters long from a rhizome network. The minute flowers are located in an umbel on a short stalk. They yield tiny round fruits only 1 or 2 millimeters wide.

Other Lilaeopsis plants

Lilaeopsis brasiliensis · Mudflat quillplant · Schaffner's grasswort

Text excerpted from the Wikipedia article Lilaeopsis occidentalis by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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