Weeds: Hedge bindweed – Calystegia sepium (Convolvulus sepium) categories: F-H Weeds revision date: 2024-06-22 08:10 Hedge bindweed flowersPhoto by: D.G. Swan Family: Convolvulaceae Cycle: Perennial Plant type: Broadleaf Biology Hedge bindweed is a trailing or climbing (twining) perennial plant which spreads aggressively by creeping underground stems and by seeds. Large (one to five inches), dark […]
Weeds: Henbit – Lamium amplexicaule categories: F-H Weeds revision date: 2024-06-22 08:10 Flowering henbitPhoto by: T.W. Miller Family: Lamiaceae (Labiatae) Cycle: Annual Plant type: Broadleaf Biology A spreading to erect plant, henbit has the square stems and opposite leaves characteristic of most plants in the mint family. Plants may branch extensively at the base. Branches […]
Weeds: Herb Robert (Robert geranium, stinky Bob) – Geranium robertianum categories: F-H Weeds revision date: 2024-06-22 08:11 Herb Robert close-up of flower/plantPhoto by: King County Noxious Weed Control Program Family: Geraniaceae Cycle: Winter or spring annual Plant type: Broadleaf Biology Herb Robert is a sprawling to upright plant reaching 2 to 12 inches tall, or […]
Weeds: Horsetails (Scouringrush) – Equisetum spp. categories: F-H Weeds revision date: 2024-06-22 08:11 HorsetailPhoto by: R. Parker Family: Equisetaceae Cycle: Perennial Plant type: Other Biology Field horsetail (Equisetum arvense) grows from a perennial, creeping root system. The rhizomes are brown, somewhat woolly, and bear small tubers. Two types of stems emerge in the spring. Tiny […]
Weeds: Horseweed (Marestail) – Conyza canadensis categories: F-H Weeds revision date: 2024-06-22 08:11 Horseweed flowerheadsPhoto by: T.W. Miller Family: Asteraceae (Compositae Cycle: Annual Plant type: Broadleaf Biology Horseweed plants range from one to five feet tall. The erect stems may be branched, especially near the top. The alternate, rather narrow leaves are one to three […]
