weed

Showing 25–36 of 52 results

  • Hesperis matronalis / dame’s rocket

    • biennial, 3+ feet tall in second year
    • 4-petaled flowers, especially purple or lavender
    • large inflorescences with many flowers
    • garden escapee
    • roadsides, waste places

  • Hordeum jubatum / foxtail barley

    • attractive roadside grass
    • long, silky, glistening awns; red, green, purple-ish
    • awns and bracts are sharp and barbed... potentially dangerous to dogs

  • Hyocyamus niger / black henbane

    • highly toxic! including contact dermatitis
    • 5-lobed, funnel-shaped flowers, brownish yellow with purple veins and center; 1.5" across
    • flowers in summer, e.g. warm June, July
    • elliptical leaves, pointy tips, toothed or lobed margins, prominent veins
    • highly disturbed areas: wastelands, field edges etc.

  • Lactuca serriola / prickly lettuce

    • numerous dime-sized yellow flowers in an "airy" panicle
    • buds droop or hang in a "shepherd's hook" before opening
    • seed heads are dandelion-like, but more delicate
    • highly divided, prickly leaves
    • mostly in "waste" areas

  • Leucanthemum vulgare / oxeye daisy

    • bright, white "petals", 2-3" across; yellow centers
    • s/he loves me, s/he loves me not
    • glossy green, spoon-shaped leaves in a 2 foot dome
    • may form large colonies
    • potentially wide spread

  • Linaria vulgaris / yellow toadflax

    • fine, threadlike leaves, plants up to 3 feet tall
    • flowers similar to snapdragon, pale yellow with orange lower lip, long spur
    • flowers in tight terminal clusters
    • plants typically in patches
    • "noxious" weed in Idaho

  • Lotus corniculatus / birds-foot trefoil

    • roadsides and other disturbed areas
    • numerous bright yellow, pea-like flowers
    • three, oval and pointed leaflets
    • seed pods are arranged like toes on a bird's foot

  • Malva neglecta / cheeseweed

    • leaves look like grocery store geraniums (Pelargonium)
    • flowers are small, pink-ish and often buried in the foliage
    • fruits are small (ca. 1/2 in) and round

  • Medicago lupulina / black medic

    • prostrate, long creeping stems
    • compound leaves with 3 small, rounded leaflets
    • teeny yellow flowers in very small button-like clusters
    • disturbed areas with compacted soil - roadsides & wastelands

  • Melilotus spp / sweetclover

    • yellow or white, floppy, tubular flowers in long-ish clusters (racemes)
    • 3 small, pointy leaflets with petioles
    • rangy, unkempt branching
    • roadsides, waste places and sometimes in fields, grasslands

  • Plantago major / broadleaf plantain

  • Polygonum aviculare / prostrate knotweed

    • long, prostrate stems around a central point
    • copious red-edged white flowers
    • small green leaves
    • along roadsides, parking lots and wherever trampling occurs
    • an ugly weed you'll see on most of your walks around town

Showing 25–36 of 52 results