disturbed

Showing 25–36 of 94 results

  • Chamerion angustifolium / fireweed

    • bright pink flowers on tall inflorescence (raceme)
    • flowers mature from bottom to top
    • four petals
    • spiral leaf arrangement - lance-shaped leaves have smooth edges
    • pod-like seed capsule releases seeds to the wind

  • Chenopodium album / lamb’s quarters

    • green, nobbly inflorescence - many nob-like flowers
    • leaves grey-green, more or less triangular
    • leaves may feel cool to the touch
    • widespread weed, especially in disturbed habitats

  • Cirsium arvense / Canada thistle

    • purple or lavender clearly-thistle flower heads
    • multiple small flower heads per stem
    • deeply lobed, spiny leaves, but stems not spiny
    • clonal and perennial
    • in clumps or along roads, sometimes quite large/long

  • Cirsium vulgare / bull thistle

    • very nasty spines all over, including stems
    • purple flower head over pear/egg-shaped narrow, spiny bracts
    • fruits are thistle-downy
    • disturbed areas, but also forest gaps, stream sides and seeps

  • Claytonia lanceolata / lanceleaf spring beauty

    • small, very early spring, ephemeral
    • 5 white or pink-ish petals with pink/purple stripes
    • pair of opposite leaves at mid-stem; lanceolate

  • Convulvulus arvensis / field bindweed

    • prostrate and twining vine with white "morning-glory" flowers
    • may be so dense as to choke out other plants
    • roadsides, agricultural fields, waste areas
    • "noxious" in Idaho

  • Corydalis aurea / scrambled eggs

    • prostrate herb, up to 15" tall
    • moist but well-drained soils, including on roadsides
    • yellow tubular flowers, with spurs
    • highly dissected leaves, blue-grey except when young
    • fruits are pod-like, resembling peas or beans

  • Cynoglossum officinale / houndstongue

    • reddish-purple flowers in upper leaf axils
    • forms basal rosette with hairy leaves in first year
    • stem leaves lance shaped, hairy, rough
    • fruit - small nutlets with barbs or hooks

  • Danthonia californica / California oatgrass

    • medium-sized, cool season bunchgrass
    • florets widely spaced with long stalks on an open panicle
    • may have flowering stems that appear wiry and crinkled
    • when flowering, stamens are purple

  • Delphinium bicolor / low larkspur

    • short plant with a spike of purple flowers
    • individual flowers have a pronounced spur out the back
    • leaves are few, round, deeply lobed, about the size of a quarter
    • widespread throughout the valley and on the hills
    • appears and blooms soon after snowmelt

  • Descurainia pinnata / western tansy mustard

    • another stupid yellow crucifer
    • erect stem, up to 30 inches
    • deeply lobed leaves, without petioles up-stem
    • often near or under sagebrush, otherwise dry, disturbed and crappy soils

  • Dianthus armeria / Deptford pink

    • PINK! 5 petaled, very small flowers
    • Toothed edges; white spots on petals, numerous stamens
    • Linear, opposite leaves; bases make sheath around stem
    • Disturbed areas; happy enough in the worst of soils

Showing 25–36 of 94 results