Water Parsely

Oenanthe sarmentosa

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Apiaceae
Genus:
Oenanthe
Species:
Oenanthe sarmentosa

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
3-4 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
may, aug
Bloom Colors:
White

Native Range

United States: Alaska, California, Oregon, Washington, Canada: British Columbia

Host Plant for Caterpillars

Agonopterix oregonensis, Agonopterix rosaciliella, Depressaria daucella, Anise Swallowtail (Papilio zelicaon)

Reported Fauna Sightings

Bees: Fuzzy-horned bumble bee (Bombus mixtus), Fuzzy-horned bumble bee (Bombus mixtus), Indiscriminate cuckoo bumble bee (Bombus insularis), Indiscriminate cuckoo bumble bee (Bombus insularis), Two-form bumble bee (Bombus bifarius), Two-form bumble bee (Bombus bifarius), Yellow-faced bumble bee (Bombus vosnesenskii), Yellow-faced bumble bee (Bombus vosnesenskii)

Soil Requirements

Soil Type:
rich, moisture-retentive loamy soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Commonly found in wetlands and along stream banks.

Germination Information

Pre-treatment: Soak seeds for 24 hours. Cold stratify for 21 to 30 days.

Establishment: Seeds are collected between August 15th and September 15th. Mature inflorescences are brown. O. sarmentosa is found in marshes and sluggish water from California to British Columbia and east to Idaho.

Source: npn.rngr.net