Desmodium tortuosum
A Neotropical Fabaceae forage legume introduced in the southeastern United States, widely used for animal feed and invasive across Africa, Asia, North America, and Oceania, found in fields, woodland borders, and disturbed areas from eastern North Carolina to southern Florida and west to Arkansas and Texas, flowering roughly July to October.
Common Names
Dixie Tick-Trefoil, Beggarweed, Florida Beggarweed, Giant Beggarweed, Twisted Tick Trefoil
Summary
Florida beggarweed is a tropical American legume native to the Americas and widely introduced and naturalised in tropical regions. It is an erect perennial herb or subshrub up to 1.5 m tall with green to purple stems pubescent with hooked hairs, and three-foliate leaves. Inflorescences are terminal and axillary, up to 30 cm long, bearing blue-mauve or pink papilionaceous flowers; fruit is a segmented legume that forms pods up to 3.2 cm long, glandular hairy and often twisted at constrictions.
Cultivation and uses: widely cultivated as a nitrogen-enricher and hence naturalised in tropical regions; used as animal fodder, forage, or green manure. It commonly inhabits roadsides, railways, cultivated land, and disturbed areas; it can be invasive in some regions and is a major weed of row crops.
Lifecycle
Annual and Perennial
Height
4-8 feet
Spread
1.5-2.5 feet
Hardiness Zones
Zones 9
Sunlight Requirements
Ideally full sun.
Soil Type
Sandy, well-draining soil.
Soil Drainage
Well-drained soil that does not waterlog.
Soil pH
6–7.5
Bloom Color
Blue to violet, including blue-mauve, pink, blue-green, lavender, and purple
Bloom Time
Summer and Fall
Foliage Color
Green
Growth Rate
1.6 cm/day
Seasons of Interest
Spring, Summer, Fall
Propagation Methods
Seeds, Cuttings, Division, Root cuttings
Attracts Wildlife
Attracts wildlife including birds; pollinators: insects
Taxonomy
- Taxonomic Rank
- Species
- Author
- (Sw.) DC.
- Publication
- Prodr. 2: 332 (1825)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Fabales
- Family
- Fabaceae
- Subfamily
- Papilionoideae
- Genus
- Desmodium
Synonyms
Meibomia purpurea Meibomia tortuosa Hedysarum purpureum Desmodium purpureum Desmodium stipulaceum Desmodium pulcherrimum Meibomia physocarpa Meibomia stipulacea Desmodium tortuosum var. hirtellum Hedysarum stipulaceum Desmodium physocarpos Hedysarum tortuosum