Cruciferae

Showing 1–12 of 20 results

  • Alyssum desertorum / desert madwort

    • short crucifer with teeny leaves, no basal rosettes
    • short inflorescence with numerous teeny yellow flowers... short-lived
    • seed capsules mature by mid-July, ca. 40/stalk
    • disturbed sites of any kind
    • often in dense populations

  • 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

  • Beteroa incana / hoary alyssum

    • dense clusters of teeny white flowers
    • 4 petals, each with a notch
    • fruit is a short, fat-ish seed pod (silicle)
    • found in pastures and all manner of disturbed habitats
    • toxic to horses

  • Boechera pauciflora / elegant rockcress

    • small, insignificant brassica on rocky soils, with sagebrush
    • rosette of small, hairy, spatulate leaves
    • single flowering stalk, 6" or more tall, covered with clasping, hairy leaves
    • flowers 4-petals, purple (usually) flowers with yellow centers
    • may be seen after snowmelt parasitized with yellow pseudoflowers

  • Boechera retrofracta / reflexed rockcress

    • spring blooming crucifer (brassica)
    • white or lavender, pendent, bell-shaped flowers
    • many flowers on a single stalk (raceme)
    • hairy rosette and stem leaves
    • usually in rocky, sagebrush communities

  • Capsella bursa-pastoris / shepherd’s purse

    • small crucifer with terminal clusters of teeny white flowers
    • rosette of small, maybe toothed, leaves
    • very distinctive, notched, triangular fruits - like shepherd's "purses"
    • found pretty much anywhere that has/had bare soil

  • Cardamine hirsute / hairy bittercress

    • small brassica/crucifer with compound leaves
    • teeny white, 4 petal flowers with 4 stamens in racemic clumps
    • a widespread weed, including gardens and lawns

  • 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

  • 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

  • Erysimum cheiranthoides / wormseed wallflower

    • yellow, 4-petaled flower, less than 1/3 inch across
    • lance shaped or elliptical, sessile leaves varying little in size or shape
    • leaf margins entire or coarsely toothed
    • ribbed stems
    • ascending or erect siliques with short pedicels
    • disturbed and waste areas

Showing 1–12 of 20 results