Yellow joyweed
|
Alternanthera flavescens
|
Amaranthaceae
|
Landscape Uses:
|
|
Primarily recommended for natural landscapes and habitat restorations. Also butterfly gardens along the coast. |
Ecological Restoration Notes: |
|
A common element of beach dunes and coastal strand nearly throughout coastal South Florida. |
Availability: |
|
Grown by enthusiasts. |
Description: |
|
Small scrambling herb. |
Height: |
|
Typically 3-12 inches in height or higher, climbing over the ground or other vegetation and forming large patches. |
Growth Rate: |
|
Moderate. |
Range: |
|
Monroe County Keys north along the coasts to Brevard (southern Merritt Island) and Manatee counties; West Indies (where possibly introduced in part), southern Mexico, Central America and South America. |
Habitats: |
|
Coastal beaches, thickets, and hammock edges. |
Soils: |
|
Moist, well-drained sandy soils, with or without humusy top layer. |
Nutritional Requirements: |
|
Low; it grows in nutrient poor soils. |
Salt Water Tolerance: |
|
Low; does not tolerate long-term flooding by salt or brackish water. |
Salt Wind Tolerance: |
|
Frontline; grows in direct salt wind but away from constant salt spray. |
Drought Tolerance: |
|
High; does not require any supplemental water once established. |
Light Requirements: |
|
Full sun to light shade. |
Flower Color: |
|
White. |
Flower Characteristics: |
|
Inconspicuous. |
Flowering Season: |
|
All year; peak spring-summer. |
Fruit: |
|
Inconspicuous utricle. All year. |
Wildlife and Ecology: |
|
Nectar plant for cassius blue (Leptotes cassius), great southern white (Ascia monuste), long-tailed skipper (Urbanus proteus), Miami blue (Cyclargus thomasi bethunebakeri), Schaus’ swallowtail (Papilio aristodemus ponceanus) and other butterflies. |
Horticultural Notes: |
|
Can be grown from cuttings. |
Comments: |
|
This is much more common in South Florida than seaside joyweed (A. maritima), which does not have stalked flowering clusters. |
|
|
|
James Johnson, 2014 In habitat, Blazingstar Preserve, Palm Beach County, Florida
|
|
James Johnson, 2014 In habitat, John Pennekamp Coral Reef State Park, Monroe County, Florida
|
|
|
|