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Showing 193–204 of 327 results

  • Noccea fendleri ssp. idahoensis / wild candytuft

    • white crucifer, four petals in two parallel rows
    • flowers in terminal clusters
    • basal rosette leaves with a few on the stalks
    • wetter areas

  • Oenothera villosa / hairy evening primrose

    • yellow flowers on tall stalks, several flowers in a cluster
    • 4 petals; 8 stamens; large, 4 part stigma
    • hairy - often reddish -  stems; hairy leaves
    • lance-shaped leaves, larger on stem than basal
    • disturbed areas and stream banks

  • Onobrychis viciifolia / sainfoin

    • forage legume, taller than alfalfa
    • pink pea-like flowers with striped banner petal and darker keel
    • spiky inflorescence (a raceme) blooming from bottom up - up to 50 flowers
    • pinnately compound leaves with single terminal leaflet
    • naturalized with sagebrush and mountain shrubs, but also in the central Valley

  • Opuntia fragilis / brittle pricklypear

    • smallest pricklypear cactus; potato-shaped pads
    • pads separate with lightest bump
    • seldom flowers or fruits

  • Opuntia polyacantha / starvation cactus

    • yellow or peach, complex, many-petaled flowers
    • large globose, pointed buds with reddish scales
    • cactus pads with long or short spines and nasty glochids

  • Orogenia linearifolia / Indian potato

    • spring ephemeral, found only at snowmelt
    • very small plant, teeny flowers and teeny umbels
    • white flowers with purple dots (stamens)
    • grass-like leaves

  • Orthilia secunda / sidebell wintergreen

    • evergreen herb or sub-shrub
    • boggy understory and forest stream banks
    • basal, egg-shaped leaves with prominent veins
    • very small to teeny creamy or green-ish flowers all on one side of stem

  • Osmorhiza spp / sweet cicely

    • broad compound, bluntly toothed, fern-like leaves 3 times compoundly divided
    • compound umbels of tiny white flowers; May-June
    • short, understory herb

  • Oxybasis glauca / oak-leaved goosefoot

    • typically prostrate and small, apart from other plants
    • mudflats and other drying wet areas
    • small, blue-green, small-lobed leaves; often w/ reddish stems
    • teeny clusters of teeny yellow flowers
    • leaves feel cool and damp due to glandular hairs on lower surface

  • Oxytropis sericea / white-point vetch

    • white "pea" flowers in clusters of up to 25
    • banner petal white with purple/blue veins
    • hairy, pinnately compound leaves, all basal
    • disturbed areas, especially exposed to cold, drought, high light etc.
    • pretty, but toxic to grazing animals

  • Ozomelis stauropetala / side-flowered mitrewort

    • teeny, white, star-like flowers spaced out on one side of a leafless stem
    • basal leaves, slightly lobed
    • understory in moist woods

  • Packera cana / woolly groundsel

    • yellow, daisy-like blossoms with 8-13 ray florets ("petals")
    • golden, central disks
    • blossoms in flat-topped clusters of up to 15
    • mostly basal leaves - unlobed, hairy, ovate, up to 2 inches long
    • overall silvery appearance

Showing 193–204 of 327 results