Weeds: Canada thistle – Cirsium arvense categories: C-E Weeds last review date: 2025-09-15 07:14 Family: Asteraceae (Compositae) Cycle: Perennial Plant type: Broadleaf Canada thistle leaves and flower Photo by: T.W. Miller Biology Canada thistle is an aggressive, spreading weed. The aboveground portions of the plants die back in the winter, but resprout from perennial roots […]
Weeds: Catchweed bedstraw (Cleavers) – Galium aparine categories: C-E Weeds last review date: 2025-09-15 07:17 Family: Rubiaceae Cycle: Annual Plant type: Broadleaf Catchweed bedstraw leaf whorls Photo by: T.W. Miller Biology Catchweed bedstraw is a weakly erect to sprawling plant from a slender taproot. Stems are weak, climbing or twining to over six feet in […]
Weeds: Catsear, common (False dandelion) – Hypochaeris radicata categories: C-E Weeds last review date: 2025-09-15 07:20 Family: Asteraceae (Compositae) Cycle: Perennial Plant type: Broadleaf Common catsear rosette Photo by: J.A. Kropf Biology Common catsear, also known as false dandelion or spotted catsear, grows in a rosette, with all the leaves at the base of the […]
Weeds: Chickweed, common and mouseear – Stellaria media, Cerastium fontanum ssp. vulgare categories: C-E Weeds last review date: 2025-09-15 07:26 Family: Caryophyllaceae Cycle: Annual, Perennial Plant type: Broadleaf Common chickweed leaves and flowers Photo by: R. Parker Biology COMMON CHICKWEED reproduces both by seeds and by many creeping stems which can root at the nodes. […]
Weeds: Clover – Trifolium spp. categories: C-E Weeds last review date: 2025-09-15 07:28 Family: Fabaceae (Leguminosae) Cycle: Various Plant type: Broadleaf Clover flowers Photo by: R. Parker Biology Clovers, depending on species, may be annuals or perennials. Typically, clovers are fairly low-growing, herbaceous plants. The leaves are divided into three leaflets which are attached to […]
Weeds: Comfrey – Symphytum officinale categories: C-E Weeds last review date: 2025-09-15 07:38 Family: Boraginaceae Cycle: Perennial Plant type: Broadleaf Comfrey bell-shaped flowers Photo by: T.W. Miller Biology Comfrey has clump-forming perennial roots with brown to black bark. The roots are thick and penetrate deep in the soil, making comfrey difficult to eradicate once established. […]
Weeds: Crabgrass – Digitaria spp. categories: C-E Weeds last review date: 2025-09-15 07:42 Family: Poaceae (Graminae) Cycle: Annual Plant type: Grass Crabgrass Photo by: R. Parker Biology Large crabgrass (Digitaria sanguinalis) may reach up to two feet tall but is often prostrate. Stems lying along the ground may root, forming mats. The flat leaf blades […]
Weeds: Creeping Jenny: Lysimachia nummularia categories: C-E Weeds last review date: 2025-09-15 07:50 Family: Primulaceae Cycle: Perennial Plant type: Evergreen Creeping Jenny flower Photo by: H. Zell Biology Lysimachia nummularia, commonly called moneywort or creeping Jenny, is a low-growing, creeping ground cover which forms a leafy mat only 2-4″ tall. Roots where leaf nodes come […]
Weeds: Dandelion – Taraxacum officinale categories: C-E Weeds last review date: 2025-09-15 08:25 Family: Asteraceae (Compositae) Cycle: Perennial Plant type: Broadleaf Common dandelion with flowers Photo by: J.A. Kropf Biology The common dandelion is a persistent taprooted plant reproducing by seeds and by short shoots from the crown. It also grows back from roots broken […]
Weeds: Dock (Curly, Broadleaf) – Rumex spp. categories: C-E Weeds last review date: 2025-09-15 09:59 Family: Polygonaceae Cycle: Perennial Plant type: Broadleaf Broadleaf dock Photo by: T.W. Miller Biology Curly dock (Rumex crispus), also called sour dock or yellow dock, is a robust tap-rooted perennial growing two to five feet tall. Stems are erect, reddish, […]
