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pink redstem
Scientific Name: Ammannia latifolia
Family: Lythraceae
Category: Dicot
Growth: Forb/herb, Subshrub
Duration: Annual
Other Names: NJ (Koehn's toothcup)
Erodium cicutarium and Ammannia latifolia: An Overview
This page provides information about two distinct plant species: Erodium cicutarium and Ammannia latifolia. Commonly known as redstem filaree and pink redstem, respectively, these plants exhibit unique characteristics and distributions.
Considerations for Pets
- Erodium cicutarium, or redstem filaree, possesses a fruit with an "awn-like tail," which might present a physical hazard to pets if ingested or if it becomes lodged in fur.
Considerations for Children
- The fruit of Erodium cicutarium has an "awn-like tail," which, while not inherently dangerous, could be a minor irritant if children play with or handle the plant.
Scientific and Common Names
- Erodium cicutarium: Redstem filaree, redstem stork’s bill, common stork's bill.
- Ammannia latifolia: Pink redstem, Yerba de cangrejo, Crab weed.
Taxonomy and Nomenclature
- Ammannia latifolia:
- Family: Lythraceae
- Synonyms: Ammannia catholica Hook. & Arn. ex Seem.
Distribution and Habitat
- Erodium cicutarium is found throughout California, up to approximately 6600 feet (2000 m).
- Ammannia latifolia is native to Texas and other states, including Florida. It is often found in wetland habitats. Growing beside the river Ganges, Rishikesh, India.
Ecological Role
- Redstem filaree (Erodium cicutarium) is sometimes considered a weed, particularly in turfgrass.
Morphological Characteristics
- Erodium cicutarium: Each flower has five separate pink to reddish-lavender petals. Flowers generally occur in clusters of two. The flowers produce five long, lobed fruits, each with an awn-like tail.
- Ammannia latifolia: An annual forb/herb or subshrub. Stems bear bright pink flowers, which often have dark spots on the bases. The upper leaf surface is dark green, while the lower surface is pinkish-green with conspicuous pink veins. Leaves become smaller toward the top of the plant.
Interactions with Other Organisms
- Erodium cicutarium flowers attract pollinators.
Further Information
- Discover Life offers a page about the biology, natural history, ecology, identification, and distribution of Ammannia latifolia.
- Flickr Hivemind contains images tagged with "pink,redstem," providing visual resources for Erodium cicutarium.