Weeds: Birdfoot Trefoil – Lotus corniculatus Categories: A-B Broadleaf Weeds Last review date: 2026-06-07 06:15 Scientific name: Lotus corniculatus Family: Fabaceae Cycle: Perennial Plant type: Broadleaf Birdfoot Trefoil flowers Photo by: Albert Herring CC 2.0 Biology Lotus corniculatus can be identified by its unique shaped leaves that alternate on the main stem, are trifoliate (3 […]
Weeds: Bittercress (Shotweed, Hairy bittercress) – Cardamine hirsuta Categories: A-B Broadleaf Weeds Last review date: 2026-06-07 03:12 Scientific name: Cardamine hirsuta Family: Brassicaceae (Cruciferae) Cycle: Winter annual Plant type: Broadleaf Hairy bittercress rosette (1) Photo by: T.W. Miller Biology Little bittercress is a fall/winter-germinating annual species growing to less than five inches tall. Leaves are […]
Weeds: Bittersweet nightshade (European bittersweet) – Solanum dulcamara Categories: A-B Broadleaf Weeds Last review date: 2026-06-07 08:03 Scientific name: Solanum dulcamara Family: Solanaceae Cycle: Perennial Plant type: Broadleaf Bittersweet nightshade fruits Photo by: T.W. Miller Biology Bittersweet nightshade is a trailing to climbing, viny plant with stems reaching up to ten feet. The dark green […]
Weeds: Black medic – Medicago lupulina Categories: A-B Broadleaf Weeds Last review date: 2026-06-07 06:42 Scientific name: Medicago lupulina Family: Fabaceae (Leguminosae) Cycle: Annual Plant type: Broadleaf Black medic stem and leaves Photo by: T.W. Miller Biology Black medic is very clover-like in appearance and is sometimes called Japanese clover. Leaves are alternate on the […]
Weeds: Blackberry (Himalayan, Evergreen, Pacific) – Rubus spp. Categories: A-B Broadleaf Weeds Last review date: 2026-06-07 07:11 Scientific name: Rubus spp. Family: Rosaceae Cycle: Perennial Plant type: Broadleaf Blackberry fruit Photo by: T.W. Miller Biology Several species of blackberries may be considered weeds. Among these are evergreen or cutleaf blackberry (Rubus laciniatus), the native dewberry […]
Weeds: Blue mustard (Purple mustard, Tenella mustard) – Chorispora tenella Categories: A-B Broadleaf Weeds Last review date: 2026-06-07 03:24 Scientific name: Chorispora tenella Family: Brassicaceae (Cruciferae) Cycle: Winter annual Plant type: Broadleaf Blue mustard with flowers Photo by: J.A. Kropf Biology Blue mustard is a leafy, taprooted winter annual. Plants branch primarily from the base, […]
Weeds: Buffalobur – Solanum rostratum Categories: A-B Broadleaf Weeds Last review date: 2026-06-07 08:12 Scientific name: Solanum rostratum Family: Solanaceae Cycle: Annual Plant type: Broadleaf Buffalobur with flowers Photo by: D.G. Swan Biology Buffalobur is an exceptionally spiny annual plant growing about two feet high. The alternate leaves have deep, rounded lobes and are two […]
Weeds: Bull thistle – Cirsium vulgare Categories: A-B Broadleaf Weeds Last review date: 2026-06-07 03:47 Scientific name: Cirsium vulgare Family: Asteraceae (Compositae) Cycle: Biennial Plant type: Broadleaf Bull thistle flower Photo by: J.A. Kropf Biology A first-year plant of bull thistle is a rosette of deeply lobed, wavy-margined leaves. The upper surface of the leaves […]
Weeds: Buttercup, creeping – Ranunculus repens Categories: A-B Broadleaf Weeds Last review date: 2026-06-07 07:06 Scientific name: Ranunculus repens Family: Ranunculaceae Cycle: Perennial Plant type: Broadleaf Creeping buttercup flowers Photo by: T.W. Miller Biology Creeping buttercup is a creeping perennial plant that is usually fairly low growing. The stems are hairy and root at the […]
Weeds: Butterfly bush – Buddleja davidii Categories: A-B Broadleaf Weeds Last review date: 2026-06-07 02:43 Scientific name: Buddleja davidii Family: Scrophulariaceae Cycle: Perennial Plant type: Broadleaf Buddleja davidii ‘Fascination’ Photo by: Ptelea; CC BY-SA 3.0 Biology Butterfly bush, Buddleja davidii, is a deciduous shrub that grows from 3 to 15 ft tall. Until only recently, […]
