Sulfaweed, Broadleaf sumpweed
Iva annua L.
Asteraceae (Sunflower Family)
Description
Sulfaweed is a native, warm-season annual in the Sunflower family. Also called broadleaf sumpweed, broadleaf marshelder, seacoast sumpweed and pelocote, the plant can grow from 2 to 6 feet tall. It has enough hair to be rough to the touch.
The leaves are situated in pairs across from each other on the stem. Each has three major veins visible on the lower or inner leaf.
Sulfaweed blooms in the summer and fall. A key characteristic is the presence of many small, leaflike bracts around every flower in the flowering stem.
The forage value of sulfaweed is fair for wildlife and, when the plant is young, fair for livestock.
Habitat
This plant grows in moist soils in disturbed areas, roadsides and coastal bermudagrass pasture.
Images
Plant Characteristics
Seed Type: Non-Encapsulated
Duration: Annual
Stem Texture: Hairy
Growth Habit: Forbs/Broadleaf
Leaf Shape
: Simple with Pinnate or Parallel Venation
Season: Warm
Distribution
: 01 - Pineywoods, 02 - Gulf Prairies and Marshes, 03 - Post Oak Savannah, 04 - Blackland Prairies, 05 - Cross Timbers and Prairies, 06 - South Texas Plains, 07 - Edwards Plateau, 08 - Rolling Plains, 09 - High Plains
Distributions
Distribution refers to the ecological region in Texas that a plant has been found. You can also view a clickable map.
Book: Brush and Weeds of Texas Rangelands (B-6208)
Collection: Brush and Weeds
