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spurless touch-me-not
Scientific Name: Impatiens ecalcarata
Family: Balsaminaceae
Category: Dicot
Growth: Forb/herb
Duration: Annual
Other Names:
Impatiens ecornuta
Also known as spurless touch-me-not or western touch-me-not, Impatiens ecornuta is an interesting flowering plant.
Considerations for Pets
- This plant is known as a "touch-me-not," implying that the plant may have seed dispersal mechanisms that could eject seeds.
Taxonomy and Nomenclature
- Scientific Name: Impatiens ecornuta
- Common Names: Spurless touch-me-not, Western touch-me-not
- Genus: Impatiens
- Species: ecornuta, ecalcarata
- Family: Balsaminaceae (Touch Me Not family)
- Taxonomic Rank: Species
Distribution and Habitat
- Native to the northwestern United States and British Columbia.
Morphological Characteristics
- An annual flowering plant.
- Stems are erect and branched, reaching 30-80 cm in height.
- Leaf blades are 2-8 cm long with petioles 1-4 cm long.
- Flowers are orange, 10-18 mm long, with a saccate sepal that is not spurred.
- The capsule is 8-15 mm long.
Synonyms
- Impatiens ecalcarata
Quirky Facts
- The name "touch-me-not" refers to the explosive seed dispersal mechanism common in this genus.
Related Species
- Impatiens glandulifera (ornamental jewelweed, policeman's helmet, Himalayan Balsam, Indian Touch-Me-Not).
- Impatiens noli-tangere (western touch-me-not).
- Impatiens capensis (spotted touch-me-not).
- Impatiens parviflora (small-flowered touch-me-not).
- Impatiens x pacifica (Pacific touch-me-not) - a hybrid between spurless and spotted touch-me-not.
Further Information
- Discover Life: Biology, natural history, ecology, identification and distribution of Impatiens ecalcarata.
- Lady Bird Johnson Wildflower Center.
- Dave's Garden: Tips and ideas for gardens, along with seeds and plants.
- TERMIUM (Government of Canada's terminology and linguistic data bank).