Taxon  Report   7641 
Sium suave  Walter
Hemlock water parsnip,  Hemlock waterparsnip
Sium suave
© 2010 Mary Winter
Click on a photo to see it bigger.
Sium suave, a dicot, is a perennial herb that is native to California and is also found elsewhere in North America and beyond.

Interactive Distribution Map

Observation Hotline
(observation details + photos)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Sium suave
© 2010 Mary Winter
Family: APIACEAE  
Genus: Sium
Freshwater Wetlands, Sagebrush Scrub, Yellow Pine Forest, Red Fir Forest, wetland-riparian
Habitat: freshwater-marsh
Wetlands: Occurs in wetlands
Name Status:
Accepted by TJM2 + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Sium cicutifolium
PLANTS: Sium floridanum
PLANTS: Sium suave var. floridanum
More information about  Sium suave
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on CalPhotos / Google Images

Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation,
with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.
[web application]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Mar 17, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.