Yellow

Showing 13–24 of 96 results

  • Barbarea vulgaris / yellow rocket

    • showy yellow brassica with relatively large flowers
    • leaves deeply lobed with larger terminal lobe, smaller toward top of stems
    • common on roadsides and waste places in spring
    • siliques about an inch long and curving upward, with beaks and pedicels

  • Castilleja spp. / paintbrushes

    • vibrant, red (or yellow) inflorescence (bracts)
    • widespread, but confusing... five or more species in the area

  • Castilleja spp. / two yellow paintbrushes

    • look like Indian paintbrushes (which they are), but yellow
    • inflorescence bracts possibly lobed
    • height ranges from less than 8" to about 15"
    • subalpine, alpine and tundra habitats, in clumps or spread out
    • linear leaves without lobes, 3 prominent veins
    • red to maroon, hairy stems

  • 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

  • Crepis acuminata / tapertip hawksbeard

    • leaves (diagnostic) - long; many deep triangular, pointed lobes; upright, grey-green; milky sap
    • flowers - 5-10 rays, no disc florets; yellow; up to 70 per plant
    • dry, open places in foothills; commonly with sagebrush

  • 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

  • Draba nemorosa / yellow whitlow-grass

    • teeny, often silvery plant with teeny yellow 4-petal flowers
    • rosette leaves have trichomes even when not really silvery
    • annual ephemeral seen soon after snowmelt
    • usually exposed near or on rocks, dry slopes
    • flat, elliptical seed capsules

  • Drymocallis arguta / tall cinquefoil

    • yellow flowers, 5 petals with pointy green sepals between
    • many stamens; central disk of yellow pistils
    • flowers in clusters with short stems (cyme)
    • most leaves basal - pinnately compound, coarsely toothed, obovate
    • many soil types, but not overly moist

  • Ericameria nauseosa / rubber rabbitbrush

    • golden-yellow flower heads in profusion
    • small 5-petaled flowers
    • widespread shrub
    • very narrow, linear leaves
    • white sticky sap ("rubber")

  • Eriogonom spp. / wild buckwheat

    • short, with small leaves close to the ground
    • leaves persistent in winter, green and red
    • blossoms - cute little buttons that look like dried flowers; long-lasting
    • inflorescence - umbel or compound umbel
    • may be white, cream, yellow, pink, red; changeable with age

  • Erysimum asperum / prairie-rocket wallflower

    • yellow flowers, large for a crucifer
    • flowers in clusters above foliage
    • oval/elliptical leaves, to 4" long... hairy
    • long thin fruit pod (silique) perpendicular to stem, may curve upward

  • Erysimum capitatum / western wallflower

    • yellow (usually) 4-petaled flowers at top of stem
    • inflorescence may be as big as a baseball, and round
    • mostly basal rosette of leaves
    • cauline leaves narrow with small teeth
    • siliques horizontal to nearly vertical; relatively long
    • variety of habitats, but not wetlands

Showing 13–24 of 96 results