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Bidens species [Asteraceae]

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Scientific Name Bidens frondosa USDA PLANTS Symbol BIFR
Common Name Devil's Beggarticks ITIS Taxonomic Serial No. 35707
Family Asteraceae (Sunflower) SEINet
Reference
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Description Habitat: Moist areas in woods, meadows, thickets, fields, roadsides, railroads, streamsides, ponds, sloughs.
Plant: Erect, branched annual 20 to 48 inches tall, smooth stems.
Leaves: Opposite on petioles 3/8 to 1-3/4 inches long; blades pinnately-compound with 3 to 5 leaflets, each 3/4 to 3-1/8 inches long, lanceolate with serrate margins; the terminal leaflet on a slender stalk (petiolule).
Inflorescence: Usually solitary, composite flower heads about 3/8 to 1/2-inch across on peduncles 1-3/4 to 4 inches long; 5 to 8 linear outer phyllaries or bracts, 3/8 to 2 inches long with ciliate margins; 6 to 12 ovate inner bractlets less than 1/4-inch long in a ring wrapped around the flower heads; ray flowers usually lacking but 1 to 3+ golden rays may be present, ~1/8-inch or less long; 20 to 60 disk florets with orange corollas.
Blooming Period: August to October.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston and SEINet.
BONAP Distribution Map

Texas Status:
Native
Scientific Name Bidens laevis USDA PLANTS Symbol BILA
Common Name Smooth Beggarticks ITIS Taxonomic Serial No. 35711
Family Asteraceae (Sunflower) SEINet
Reference
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Description Habitat: Wet soils in low places and shallow water, meadows, marshes, and stream banks; from sea level to 9,000 ft.
Plant: Erect or prostrate (at base) annual or perennial 12 to 40 inches tall, smooth stems and leaves.
Leaves: Opposite or whorled, lanceolate to elliptic, 2 to 4 inches long, sessile with coarsely serrate margins.
Inflorescence: Solitary or open corymb-like arrays of showy yellow flowers 1-1/2 to 2-3/4 inches across on peduncles 3/4 to 2-3/8 inches long; 7 or 8 yellow rays and 60 to 100 yellow-orange disk florets; what appear to be narrow green phyllaries supporting the head are actually 5 to 9 bracteoles that are up 3/4-inch and mostly obscuring the actual phyllaries of which there are 8 to 12, ovate to lanceolate-oblong, yellow and often with orange to purplish tips.
Blooming Period: August to October.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston and SEINet.
BONAP Distribution Map

Texas Status:
Native

© Tom Lebsack 2022