Sium suave

Water Parsnip

a perennial member of the Sium genus in the family Umbelliferae.

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Taxonomy and growth

Genus
Sium
Life cycle
perennial
Height
1.2 m
Fertility
Self fertile, Insects
Flower type
hermaphrodite
Pollinators
Insects

Uses

Toxicity

Toxicity warning. The historical record reports a hazard for this plant. Do not use it to decide which parts are safe to eat or use medicinally.

This section contains historical Plants For A Future notes marked noncommercial.

The stems and leaves of this plant are toxic and will kill livestock[5]. There is no conclusive proof of this, based on native North American Indian usage it is likely that the roots and stems are edible, though the flowering tops might be poisonous[6].

Edible uses

This section contains historical Plants For A Future notes marked noncommercial.

Root - raw or cooked[7]. Crisp and delicious[7], it has an agreeable nutty flavour[10][2][3]. The root is considered to be edible in the spring and the autumn but it so closely resembles some very poisonous plants that it should be considered unsafe to eat[5][7]. The aromatic leaves are used as a relish[10][2][3][7]. Some caution is advised - see the notes above on toxicity[5].

Product or use
Condiment
Plant part
Root

Medicinal uses

Historical medicinal uses. These records describe reported uses. They do not establish safety or effectiveness. Ask a qualified health professional before using any plant medicinally.

This section contains historical Plants For A Future notes marked noncommercial.

An infusion of the crushed root has been used as a poultice to bring relief from the pain of a broken limb[7]. A decoction of the roots has been used by women in the treatment of epilepsy[7].

Product or use
Analgesic

Environment

Range
Northern N. America to N. Asia.
Habitat
Meadows, wet thickets, muddy banks etc[9]. Swamps and wet areas in Texas[8].
Light
full sun
Shade tolerance
no shade
Water
high
Hardiness
Zone 4+
Soil textures
sandy, loamy
Soil pH
acid, neutral, alkaline
Tolerates Nutritionally Poor Soil
No
Drought
intolerant

Propagation

This section contains historical Plants For A Future notes marked noncommercial.

Seed - sow late winter to early spring in a cold frame. The seed can be slow to germinate[4]. Prick out the seedlings into individual pots when they are large enough to handle and plant them out in the summer if they are large enough. Otherwise, grow them on in a cold frame for their first winter and plant them out in the following spring. Division in early spring just before new growth begins. Use the side roots[1]. Larger divisions can be planted out direct into their permanent positions. We have found it best to pot up the smaller divisions and grow them on in a lightly shaded position in a cold frame, planting them out once they are well established in the summer.

Cultivation

This section contains historical Plants For A Future notes marked noncommercial.

Prefers a light, rich, moisture retentive soil in full sun[4].

References

  1. F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951-00-00

  2. Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976-00-00

  3. Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications 1990-00-00 ISBN 0-9628087-0-9

  4. Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5

  5. Craighead. J., Craighead. F. and Davis. R. A Field Guide to Rocky Mountain Wildflowers The Riverside Press 1963-00-00 ISBN 63-7093

  6. Turner. N. J. Food Plants of Coastal First Peoples UBC Press. Vancouver. 1995-00-00 ISBN 0-7748-0533-1

  7. Moerman. D. Native American Ethnobotany Timber Press. Oregon. 1998-00-00 ISBN 0-88192-453-9

  8. Diggs, Jnr. G.M.; Lipscomb. B. L. & O'Kennon. R. J Illustrated Flora of North Central Texas Botanical Research Institute, Texas. 1999-00-00 http://artemis.austincollege.edu/acad/bio/gdiggs/NCTXpdf.htm

  9. Fernald. M. L. Gray's Manual of Botany. American Book Co. 1950-00-00

  10. Usher. G. A Dictionary of Plants Used by Man. Constable 1974-00-00 ISBN 0094579202

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