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Watercress
( Nasturtium officinale )
Nasturtium officinale
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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4 Nurseries Carry This Plant
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About Watercress (Nasturtium officinale)
4 Nurseries Carry This Plant
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Watercresses (
Nasturtium officinale
, N. microphyllum; formerly
Rorippa nasturtium-aquaticum
, R. microphylla) are fast-growing, aquatic or semi-aquatic, perennial plants native from Europe to central Asia, and one of the oldest known leaf vegetables consumed by human beings. It is an invasive species in the Great Lakes region where it was first sighted in 1847. These plants are members of the Family Brassicaceae or cabbage family, botanically related to garden cress and mustard - all noteworthy for a peppery, tangy flavour. The hollow stems of watercress are floating and the leaves are pinnately compound. Watercresses produce small white and green flowers in clusters.
Plant Description
Plant Type
Perennial herb
Dormancy
Evergreen
Flower Color
White, Green
Flowering Season
Spring, Summer, Fall
Wildlife Supported
Butterflies & moths hosted ( 7
likely
* )
SHOW ALL
*
Sara Orangetip
Anthocharis sara
Anthocharis sara
*
Margined White
Pieris marginalis
Pieris marginalis
*
Corn Earworm Moth
Helicoverpa zea
Helicoverpa zea
*
Salt Marsh Moth or Acrea Moth
Estigmene acrea
Estigmene acrea
*
Labrador Carpet
Xanthorhoe labradorensis
Xanthorhoe labradorensis
*
Ni Moth
Trichoplusia ni
Trichoplusia ni
*
Soybean Looper Moth
Chrysodeixis includens
Chrysodeixis includens
Landscaping Information
Sun
Full Sun
Nurseries
Carried by 4
Common uses
Bogs and Ponds
Sunset Zones
?
1, 2*, 3*, 4*, 5*, 6*, 7*, 8*, 9*, 10, 11, 12, 13, 14*, 15*, 16*, 17*, 18*, 19*, 20*, 21*, 22*, 23*, 24*
Natural Setting
Site Type
Wet places
Climate
Annual Precipitation: 4.9" - 121.0", Summer Precipitation: 0.15" - 3.57", Coldest Month: 23.8" - 58.4", Hottest Month: 44.6" - 87.1", Humidity: 0.03" - 37.68", Elevation: -38" - 10600"
Alternative Names
Botanical Names
: Rorippa nasturtium-aquaticum
Common Names
: Water Cress, Water-cress
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Watercress
Nasturtium officinale
Sources include:
Wikipedia
. All text shown in the "About" section of these pages is available under the
Creative Commons Attribution-ShareAlike License
. Plant observation data provided by the participants of the
California Consortia of Herbaria
, Sunset information provided by
Jepson Flora Project
. Propogation from seed information provided by the
Santa Barbara Botanical Garden
from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include
CalPhotos
,
Wikimedia Commons
, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include
Calflora
,
CNPS Manual of Vegetation Online
,
Jepson Flora Project
,
Las Pilitas
,
Theodore Payne
,
Tree of Life
,
The Xerces Society
, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from
PRISM Climate Group, Oregon State University
, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.
Links:
Jepson eFlora Taxon Page
CalPhotos
Wikipedia
Calflora
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